Remove support for Metrowerks compiler

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
(cherry picked from commit 0f8b6f43ae)

specs/macx-mwerks

@@ -1,25 +0,0 @@
-#
-# qmake configuration for macx-mwerks
-#
-# Mac OS X + Metrowerks compiler
-#
-
-MAKEFILE_GENERATOR	= METROWERKS
-TEMPLATE		= app
-QT			+= core gui
-CONFIG			+= qt release warn_off separate_volume link_prl 
-
-DEFINES			+= TQT_NO_STL __MACOSX__ __CF_USE_FRAMEWORK_INCLUDES__
-
-CODEWARRIOR_LINKER	= Mach-O PPC Linker
-QMAKE_EXTENSION_SHLIB	= dylib
-QMAKE_VOLUMENAME	= OS X Volume
-FRAMEWORKPATH		= {System}/Library/Frameworks/
-QMAKE_CRT_OBJECTS	= crt1.o
-QMAKE_INCDIR_TQT		= $$[QT_INSTALL_HEADERS]
-QMAKE_LIBS		= -framework System
-QMAKE_INCDIR_OPENGL	= /System/Library/Frameworks/OpenGL.framework/Headers \
-	/System/Library/Frameworks/AGL.framework/Headers/
-QMAKE_LIBS_OPENGL	= -framework OpenGL -framework AGL
-QMAKE_LIBS_OPENGL_QT	= $$QMAKE_LIBS_OPENGL
-load(qt_config)