MFH: r520117

www/firefox: remove unnecessary configure workaround

See https://bugzilla.mozilla.org/show_bug.cgi?id=1593948

Approved by:	ports-secteam blanket

www/firefox/files/patch-Makefile.in

@@ -1,22 +0,0 @@
-Don't force mach after https://bugzilla.mozilla.org/show_bug.cgi?id=1496746
-
-diff --git Makefile.in Makefile.in
-index 407e373573fb..16b8bb162d39 100644
---- Makefile.in
-+++ Makefile.in
-@@ -55,15 +55,8 @@ $(RUNNABLE_TIERS) binaries:: CLOBBER $(BUILD_BACKEND_FILES)
- endif
- endif
- 
--ifdef JS_STANDALONE
- .PHONY: CLOBBER
- CLOBBER:
--else
--CLOBBER: $(topsrcdir)/CLOBBER
--	@echo 'STOP!  The CLOBBER file has changed.'
--	@echo 'Please run the build through "mach build".'
--	@exit 1
--endif
- 
- install_manifests := \
-   $(addprefix dist/,branding include public private xpi-stage) \