Revert "[compiler-rt] Also consider SIGPROF as a synchronous signal (#85188)" (#85296)

This reverts commit 6f3f659ce9ab91002b4a490b0ce4b085981383cd.

This change is causing TSAN failures on a bot as reported in #85188:
https://lab.llvm.org/buildbot/#/builders/247/builds/15279

compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp

diff --git a/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp b/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp
index 2bebe65..8ffc703 100644
--- a/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp
+++ b/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp
@@ -126,7 +126,6 @@
 const int SIGSEGV = 11;
 const int SIGPIPE = 13;
 const int SIGTERM = 15;
-const int SIGPROF = 27;
 #if defined(__mips__) || SANITIZER_FREEBSD || SANITIZER_APPLE || SANITIZER_NETBSD
 const int SIGBUS = 10;
 const int SIGSYS = 12;
@@ -2169,8 +2168,7 @@
     return false;
 #endif
   return sig == SIGSEGV || sig == SIGBUS || sig == SIGILL || sig == SIGTRAP ||
-         sig == SIGABRT || sig == SIGFPE || sig == SIGPIPE || sig == SIGSYS ||
-         sig == SIGPROF;
+         sig == SIGABRT || sig == SIGFPE || sig == SIGPIPE || sig == SIGSYS;
 }
 
 void sighandler(int sig, __sanitizer_siginfo *info, void *ctx) {