Makefile: clean up .ilk files when MSVC=1

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>

Makefile

@@ -3483,12 +3483,15 @@ endif
 ifdef MSVC
 	$(RM) $(patsubst %.o,%.o.pdb,$(OBJECTS))
 	$(RM) $(patsubst %.exe,%.pdb,$(OTHER_PROGRAMS))
+	$(RM) $(patsubst %.exe,%.ilk,$(OTHER_PROGRAMS))
 	$(RM) $(patsubst %.exe,%.iobj,$(OTHER_PROGRAMS))
 	$(RM) $(patsubst %.exe,%.ipdb,$(OTHER_PROGRAMS))
 	$(RM) $(patsubst %.exe,%.pdb,$(PROGRAMS))
+	$(RM) $(patsubst %.exe,%.ilk,$(PROGRAMS))
 	$(RM) $(patsubst %.exe,%.iobj,$(PROGRAMS))
 	$(RM) $(patsubst %.exe,%.ipdb,$(PROGRAMS))
 	$(RM) $(patsubst %.exe,%.pdb,$(TEST_PROGRAMS))
+	$(RM) $(patsubst %.exe,%.ilk,$(TEST_PROGRAMS))
 	$(RM) $(patsubst %.exe,%.iobj,$(TEST_PROGRAMS))
 	$(RM) $(patsubst %.exe,%.ipdb,$(TEST_PROGRAMS))
 	$(RM) compat/vcbuild/MSVC-DEFS-GEN