[compiler-rt][profile] remove unneeded freebsd hack. (#77209)

Author: devnexen

compiler-rt/lib/profile/InstrProfilingPlatformLinux.c

@@ -20,15 +20,6 @@
 #include "InstrProfiling.h"
 #include "InstrProfilingInternal.h"
 
-#if defined(__FreeBSD__) && !defined(ElfW)
-/*
- * FreeBSD's elf.h and link.h headers do not define the ElfW(type) macro yet.
- * If this is added to all supported FreeBSD versions in the future, this
- * compatibility macro can be removed.
- */
-#define ElfW(type) __ElfN(type)
-#endif
-
 #define PROF_DATA_START INSTR_PROF_SECT_START(INSTR_PROF_DATA_COMMON)
 #define PROF_DATA_STOP INSTR_PROF_SECT_STOP(INSTR_PROF_DATA_COMMON)
 #define PROF_NAME_START INSTR_PROF_SECT_START(INSTR_PROF_NAME_COMMON)