Bug #32283619 AVOID USING TCMALLOC FOR RPDSERVER EVEN MYSQL IS COMPILED WITH TCMALLOC

Post-push fix: revert changes to cmake/malloc_utils.cmake.

Change-Id: I0000df3d0226daa5ec3bccd2fbee7a6f77ae82fc

Author: Tor Didriksen

cmake/malloc_utils.cmake

@@ -58,8 +58,6 @@ FUNCTION(FIND_MALLOC_LIBRARY library_name)
   STRING_APPEND(CMAKE_MODULE_LINKER_FLAGS " -l${library_name}")
   STRING_APPEND(CMAKE_SHARED_LINKER_FLAGS " -l${library_name}")
 
-  SET(FIND_MALLOC_LIBRARY_FLAG "-l${library_name}" CACHE STRING "" FORCE)
-
   FOREACH(flag
       CMAKE_C_FLAGS
       CMAKE_CXX_FLAGS