manibuilder/anita: Move environment overrides to Makefile.anita

Also be specific where we have to allow warnings and drop a long unused
override for anita:7.1-sparc.

Change-Id: I962ecbbeee2813237421ab866b54f2de79cc4a20
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/flashrom-stable/+/73773
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/util/manibuilder/Makefile b/util/manibuilder/Makefile
index b81d93b..5611de8 100644
--- a/util/manibuilder/Makefile
+++ b/util/manibuilder/Makefile
@@ -45,13 +45,11 @@
 	[ $$(docker image ls -q mani/$*) ] \
 		|| $(MAKE) $*-build $(if $(QUIET_SETUP),>/dev/null 2>/dev/null)
 
-$(ALMALINUX_TAGS) $(filter centos%,$(MULTIARCH_TAGS)) anita\:7.1-sparc: CC=cc
+$(ALMALINUX_TAGS) $(filter centos%,$(MULTIARCH_TAGS)): CC=cc
 djgpp\:6.1.0: CC=ccache i586-pc-msdosdjgpp-gcc
 djgpp\:6.1.0: STRIP=i586-pc-msdosdjgpp-strip
 djgpp\:6.1.0: LIBS_BASE=../
 djgpp\:6.1.0: MAKEARGS+=strip CONFIG_JLINK_SPI=no
-$(ANITA_TAGS): MAKECMD=gmake
-$(ANITA_TAGS): MAKEARGS+=CONFIG_JLINK_SPI=no WARNERROR=no
 $(filter alpine% centos%,$(MULTIARCH_TAGS)): MAKEARGS+=CONFIG_JLINK_SPI=no
 $(filter %-xenial %-stretch,$(MULTIARCH_TAGS)): MAKEARGS+=CONFIG_JLINK_SPI=no
 $(filter centos%,$(MULTIARCH_TAGS)): MAKEARGS+=WARNERROR=no