Remove questionable gcc flags from profile-build

Optimization options for official stockfish should be
consistent, easy, future proof and simple.

We don't want to optimize for any specific version of gcc

No functional change

Closes official-stockfish#1165

src/Makefile

@@ -536,7 +536,7 @@ gcc-profile-make:
 
 gcc-profile-use:
 	$(MAKE) ARCH=$(ARCH) COMP=$(COMP) \
-	EXTRACXXFLAGS='-fprofile-use -fno-peel-loops -fno-tracer' \
+	EXTRACXXFLAGS='-fprofile-use' \
 	EXTRALDFLAGS='-lgcov' \
 	all