[HB] Remove stale makefile.msc too

src/makefile.msc

-TOP = ..\..\..
-!INCLUDE $(TOP)\glib\build\win32\make.msc
-
-INCLUDES = -I . -I ..\.. $(FREETYPE2_CFLAGS) $(GLIB_CFLAGS)
-DEFINES = -DPANGO_ENABLE_ENGINE
-
-OBJECTS = \
-	ftglue.obj \
-	harfbuzz-buffer.obj \
-	harfbuzz-gdef.obj \
-	harfbuzz-gpos.obj \
-	harfbuzz-gsub.obj \
-	harfbuzz-open.obj \
-
-all : \
-	pango-ot.lib
-
-pango-ot.lib : $(OBJECTS)
-	lib /out:$@ $(OBJECTS)	
\ No newline at end of file