diff --git a/tools/run_tests/run_tests_matrix.py b/tools/run_tests/run_tests_matrix.py
index 982c19d9a03..aea54fcdd2d 100755
--- a/tools/run_tests/run_tests_matrix.py
+++ b/tools/run_tests/run_tests_matrix.py
@@ -347,18 +347,6 @@ def _create_portability_test_jobs(extra_args=[],
     #                             extra_args=extra_args,
     #                             extra_envs={'GRPC_DNS_RESOLVER': 'ares'})
 
-    # C and C++ build with cmake on Linux
-    # TODO(jtattermusch): some of the tests are failing, so we force --build_only
-    # to make sure it's buildable at least.
-    test_jobs += _generate_jobs(languages=['c', 'c++'],
-                                configs=['dbg'],
-                                platforms=['linux'],
-                                arch='default',
-                                compiler='cmake',
-                                labels=['portability', 'corelang'],
-                                extra_args=extra_args + ['--build_only'],
-                                inner_jobs=inner_jobs)
-
     test_jobs += _generate_jobs(languages=['python'],
                                 configs=['dbg'],
                                 platforms=['linux'],