remove -flto because it actually makes tpt significantly slower when …

…compiled on the build server

worked fine on my computer, maybe something with the older gcc version? Affected both lin64 and lin32 versions. /LTGC works fine on msvc also, so stays enabled.

-flto can be added manually with environment variables for anyone that wants to use it

SConscript

@@ -474,11 +474,9 @@ elif GetOption('release'):
 		else:
 			env.Append(CCFLAGS=['/MD'])
 	else:
-		env.Append(CCFLAGS=['-O3', '-ftree-vectorize', '-funsafe-math-optimizations', '-ffast-math', '-fomit-frame-pointer', '-flto'])
+		env.Append(CCFLAGS=['-O3', '-ftree-vectorize', '-funsafe-math-optimizations', '-ffast-math', '-fomit-frame-pointer'])
 		if platform != "Darwin":
 			env.Append(CCFLAGS=['-funsafe-loop-optimizations'])
-		#-flto: link time optimization, gives a noticeable speed boost
-		env.Append(LINKFLAGS=['-flto'])
 
 if GetOption('static'):
 	if platform == "Windows":