build: remove -pg. #1219

useless and generate unsupported section for mac

Author: wang-bin

common.pri

@@ -30,15 +30,6 @@ isEmpty(QMAKE_EXTENSION_SHLIB) {
   }
 }
 
-CONFIG += profile
-#profiling, -pg is not supported for msvc
-debug:!ios:!android:!*msvc*:profile {
-	QMAKE_CXXFLAGS_DEBUG += -pg
-	QMAKE_LFLAGS_DEBUG += -pg
-	QMAKE_CXXFLAGS_DEBUG = $$unique(QMAKE_CXXFLAGS_DEBUG)
-	QMAKE_LFLAGS_DEBUG = $$unique(QMAKE_LFLAGS_DEBUG)
-}
-
 #$$[TARGET_PLATFORM]
 #$$[QT_ARCH] #windows symbian windowsce arm
 _OS =