Remove hacks that fixed tmp vpath screwups.

uriloader/exthandler/Makefile.in

@@ -69,7 +69,3 @@ override NO_STATIC_LIB=
 
 include $(topsrcdir)/config/rules.mk
 
-# tmp fix for vpath changes
-export::
-	$(RM) -f $(OSDIR)/*.o
-

xpfe/components/timebomb/Makefile.in

@@ -29,7 +29,3 @@ EXTRA_DSO_LDOPTS += \
 
 include $(topsrcdir)/config/rules.mk
 
-# Hack to remove old objects stuck in the srcdir
-export::
-	$(RM) -f $(addprefix $(srcdir)/, $(CPPSRCS:.cpp=.$(OBJ_SUFFIX)))
-