Remove dead code (#28314)

test/core/profiling/mark_timings.stp

@@ -1,40 +0,0 @@
-/* This script requires a command line argument, to be used in the "process"
- * probe definition.
- *
- * For a statically build binary, that'd be the name of the binary itself.
- * For dynamically built ones, point to the location of the libgrpc.so being
- * used. */
-
-global starts, times, times_per_tag
-
-probe process(@1).mark("timing_ns_begin") {
-  starts[$arg1, tid()] = gettimeofday_ns();
-}
-
-probe process(@1).mark("timing_ns_end") {
-  tag = $arg1
-  t = gettimeofday_ns();
-  if (s = starts[tag, tid()]) {
-     times[tag, tid()] <<< t-s;
-     delete starts[tag, tid()];
-  }
-}
-
-probe end {
-  printf("%15s %9s %10s %10s %10s %10s\n", "tag", "tid", "count",
-    "min(ns)", "avg(ns)", "max(ns)");
-  foreach ([tag+, tid] in times) {
-    printf("%15X %9d %10d %10d %10d %10d\n", tag, tid, @count(times[tag, tid]),
-          @min(times[tag, tid]), @avg(times[tag, tid]), @max(times[tag, tid]));
-  }
-
-  printf("Per tag average of averages\n");
-  foreach ([tag+, tid] in times) {
-    times_per_tag[tag] <<< @avg(times[tag, tid]);
-  }
-  printf("%15s %10s %10s\n", "tag", "count", "avg(ns)");
-  foreach ([tag+] in times_per_tag) {
-    printf("%15X %10d %10d\n", tag, @count(times_per_tag[tag]),
-                                    @avg(times_per_tag[tag]));
-  }
-}