Revert changes that are now unnecessary and pointless

This reverts commit a94dc220.
This reverts commit 3baa1c8c.
This reverts commit 4e312f0c.
This reverts commit 050a51b6.
This reverts commit 9c2a1cb4.

libmwaw/ExternalProject_libmwaw.mk

@@ -32,7 +32,6 @@ $(call gb_ExternalProject_get_state_target,libmwaw,build) :
 			--disable-werror \
 			CXXFLAGS="$(if $(filter NO,$(SYSTEM_BOOST)),-I$(call gb_UnpackedTarball_get_dir,boost),$(BOOST_CPPFLAGS))" \
 			$(if $(filter YES,$(CROSS_COMPILING)),--build=$(BUILD_PLATFORM) --host=$(HOST_PLATFORM)) \
-			$(if $(filter MSC,$(COM)),AR=lib.exe SED=sed.exe) \
 		&& (cd $(EXTERNAL_WORKDIR)/src/lib && $(MAKE)) \
 	)
 

libodfgen/ExternalProject_libodfgen.mk

@@ -33,7 +33,6 @@ $(call gb_ExternalProject_get_state_target,libodfgen,build) :
 			--disable-weffc \
 			CXXFLAGS="$(if $(filter NO,$(SYSTEM_BOOST)),-I$(call gb_UnpackedTarball_get_dir,boost),$(BOOST_CPPFLAGS))" \
 			$(if $(filter YES,$(CROSS_COMPILING)),--build=$(BUILD_PLATFORM) --host=$(HOST_PLATFORM)) \
-			$(if $(filter MSC,$(COM)),SED=sed.exe) \
 		&& (cd $(EXTERNAL_WORKDIR)/src && $(MAKE)) \
 	)
 

libvisio/ExternalProject_libvisio.mk

@@ -41,7 +41,6 @@ $(call gb_ExternalProject_get_state_target,libvisio,build) :
 			CXXFLAGS="$(if $(filter NO,$(SYSTEM_BOOST)),-I$(call gb_UnpackedTarball_get_dir,boost),$(BOOST_CPPFLAGS)) \
 			$(if $(filter NO,$(SYSTEM_LIBXML)),-I$(call gb_UnpackedTarball_get_dir,xml2)/include)" \
 			$(if $(filter YES,$(CROSS_COMPILING)),--build=$(BUILD_PLATFORM) --host=$(HOST_PLATFORM)) \
-			$(if $(filter MSC,$(COM)),AR=lib.exe AWK=awk.exe SED=sed.exe) \
 		&& (cd $(EXTERNAL_WORKDIR)/src/lib && $(MAKE)) \
 	)
 

libwpg/ExternalProject_libwpg.mk

@@ -30,7 +30,6 @@ $(call gb_ExternalProject_get_state_target,libwpg,build) :
 			--disable-debug \
 			--disable-werror \
 			$(if $(filter YES,$(CROSS_COMPILING)),--build=$(BUILD_PLATFORM) --host=$(HOST_PLATFORM)) \
-			$(if $(filter MSC,$(COM)),AR=lib.exe SED=sed.exe) \
 		&& (cd $(EXTERNAL_WORKDIR)/src/lib && $(MAKE)) \
 	)
 

libwps/ExternalProject_libwps.mk

@@ -32,7 +32,6 @@ $(call gb_ExternalProject_get_state_target,libwps,build) :
 			--disable-werror \
 			CXXFLAGS="$(if $(filter NO,$(SYSTEM_BOOST)),-I$(call gb_UnpackedTarball_get_dir,boost),$(BOOST_CPPFLAGS))" \
 			$(if $(filter YES,$(CROSS_COMPILING)),--build=$(BUILD_PLATFORM) --host=$(HOST_PLATFORM)) \
-			$(if $(filter MSC,$(COM)),AR=lib.exe SED=sed.exe) \
 		&& (cd $(EXTERNAL_WORKDIR)/src/lib && $(MAKE)) \
 	)