diff --git a/third_party/bloaty b/third_party/bloaty
index 60209eb1ccc..73594cde8c9 160000
--- a/third_party/bloaty
+++ b/third_party/bloaty
@@ -1 +1 @@
-Subproject commit 60209eb1ccc34d5deefb002d1b7f37545204f7f2
+Subproject commit 73594cde8c9a52a102c4341c244c833aa61b9c06
diff --git a/tools/profiling/bloat/bloat_diff.py b/tools/profiling/bloat/bloat_diff.py
index 9d1d0158f8c..b6bd1de6575 100755
--- a/tools/profiling/bloat/bloat_diff.py
+++ b/tools/profiling/bloat/bloat_diff.py
@@ -15,12 +15,9 @@
 # limitations under the License.
 
 import argparse
-import csv
 import glob
-import math
 import multiprocessing
 import os
-import pathlib
 import shutil
 import subprocess
 import sys
@@ -74,48 +71,27 @@ if args.diff_base:
         subprocess.check_call(['git', 'checkout', where_am_i])
         subprocess.check_call(['git', 'submodule', 'update'])
 
-pathlib.Path('bloaty-build').mkdir(exist_ok=True)
-subprocess.check_call(
-    ['cmake', '-G', 'Unix Makefiles', '../third_party/bloaty'],
-    cwd='bloaty-build')
-subprocess.check_call('make -j%d' % args.jobs, shell=True, cwd='bloaty-build')
+subprocess.check_call('make -j%d' % args.jobs,
+                      shell=True,
+                      cwd='third_party/bloaty')
 
 text = ''
-diff_size = 0
 for lib in LIBS:
     text += '****************************************************************\n\n'
     text += lib + '\n\n'
     old_version = glob.glob('bloat_diff_old/%s' % lib)
     new_version = glob.glob('bloat_diff_new/%s' % lib)
     assert len(new_version) == 1
-    cmd = 'bloaty-build/bloaty -d compileunits,symbols'
+    cmd = 'third_party/bloaty/bloaty -d compileunits,symbols'
     if old_version:
         assert len(old_version) == 1
         text += subprocess.check_output('%s %s -- %s' %
                                         (cmd, new_version[0], old_version[0]),
                                         shell=True).decode()
-        for filename in [old_version, new_version]:
-            subprocess.check_call('strip %s' % filename[0], shell=True)
-        sections = [
-            x for x in csv.reader(
-                subprocess.check_output('bloaty-build/bloaty --csv %s -- %s' %
-                                        (old_version[0], new_version[0]),
-                                        shell=True).decode().splitlines())
-        ]
-        print(sections)
-        for section in sections[1:]:
-            diff_size += int(section[2])
     else:
         text += subprocess.check_output('%s %s' % (cmd, new_version[0]),
                                         shell=True).decode()
     text += '\n\n'
 
-severity = int(
-    math.copysign(max(0, math.log(abs(diff_size) / 1000, 10),
-                      diff_size))) if diff_size != 0 else 0
-
-print("SEVERITY: %d" % severity)
-
 print(text)
 check_on_pr.check_on_pr('Bloat Difference', '```\n%s\n```' % text)
-check_on_pr.label_significance_on_pr('bloat', severity)
diff --git a/tools/run_tests/python_utils/check_on_pr.py b/tools/run_tests/python_utils/check_on_pr.py
index 823931b74c1..12db1c4d45c 100644
--- a/tools/run_tests/python_utils/check_on_pr.py
+++ b/tools/run_tests/python_utils/check_on_pr.py
@@ -33,14 +33,6 @@ _ACCESS_TOKEN_CACHE = None
 _ACCESS_TOKEN_FETCH_RETRIES = 6
 _ACCESS_TOKEN_FETCH_RETRIES_INTERVAL_S = 15
 
-_CHANGE_LABELS = {
-    -1: 'improvement',
-    0: 'none',
-    1: 'low',
-    2: 'medium',
-    3: 'high',
-}
-
 
 def _jwt_token():
     github_app_key = open(
@@ -147,43 +139,3 @@ def check_on_pr(name, summary, success=True):
                  })
     print('Result of Creating/Updating Check on PR:',
           json.dumps(resp.json(), indent=2))
-
-
-def label_significance_on_pr(name, change):
-    """Add a label to the PR indicating the significance of the check.
-
-    Requires environment variable 'KOKORO_GITHUB_PULL_REQUEST_NUMBER' to indicate which pull request
-    should be updated.
-
-    Args:
-      name: The name of the label.
-      value: A str in Markdown to be used as the detail information of the label.
-    """
-    if change < min(list(_CHANGE_LABELS.keys())):
-        change = min(list(_CHANGE_LABELS.keys()))
-    if change > max(list(_CHANGE_LABELS.keys())):
-        change = max(list(_CHANGE_LABELS.keys()))
-    value = _CHANGE_LABELS[change]
-    if 'KOKORO_GIT_COMMIT' not in os.environ:
-        print('Missing KOKORO_GIT_COMMIT env var: not checking')
-        return
-    if 'KOKORO_KEYSTORE_DIR' not in os.environ:
-        print('Missing KOKORO_KEYSTORE_DIR env var: not checking')
-        return
-    if 'KOKORO_GITHUB_PULL_REQUEST_NUMBER' not in os.environ:
-        print('Missing KOKORO_GITHUB_PULL_REQUEST_NUMBER env var: not checking')
-        return
-    resp = _call(
-        '/repos/%s/issues/%s/labels' %
-        (_GITHUB_REPO, os.environ['KOKORO_GITHUB_PULL_REQUEST_NUMBER']),
-        method='DELETE',
-        json=[
-            "%s/%s" % (name, v) for v in _CHANGE_LABELS.values() if v != value
-        ])
-    print('Result of Deleting Labels on PR:', resp.text)
-    resp = _call(
-        '/repos/%s/issues/%s/labels' %
-        (_GITHUB_REPO, os.environ['KOKORO_GITHUB_PULL_REQUEST_NUMBER']),
-        method='POST',
-        json=["%s/%s" % (name, value)])
-    print('Result of Adding Label on PR:', resp.text)
diff --git a/tools/run_tests/sanity/check_submodules.sh b/tools/run_tests/sanity/check_submodules.sh
index c779fda231a..e6fee2edb82 100755
--- a/tools/run_tests/sanity/check_submodules.sh
+++ b/tools/run_tests/sanity/check_submodules.sh
@@ -27,7 +27,7 @@ git submodule | awk '{ print $2 " " $1 }' | sort >"$submodules"
 cat <<EOF | sort >"$want_submodules"
 third_party/abseil-cpp 278e0a071885a22dcd2fd1b5576cc44757299343
 third_party/benchmark 0baacde3618ca617da95375e0af13ce1baadea47
-third_party/bloaty 60209eb1ccc34d5deefb002d1b7f37545204f7f2
+third_party/bloaty 73594cde8c9a52a102c4341c244c833aa61b9c06
 third_party/boringssl-with-bazel 95b3ed1b01f2ef1d72fed290ed79fe1b0e7dafc0
 third_party/cares/cares e982924acee7f7313b4baa4ee5ec000c5e373c30
 third_party/envoy-api 20b1b5fcee88a20a08b71051a961181839ec7268