Bug 1412431 - Remove support for MOZ_PREFLIGHT and MOZ_POSTFLIGHT; r=nalexander

These variables are unused in the repo. The %_ALL variation is used for
sccache, however.

The last use of these variables was removed when support for MacOS
universal builds was removed.

Someone somewhere may be relying on this functionality. But I don't
think it is worth continuing to support in client.mk. If someone
really needs it, we can reintroduce support for the feature elsewhere,
like in mach or via mozconfig support somehow.

MozReview-Commit-ID: 4KznCmK3JTN

--HG--
extra : rebase_source : 656008f9b4264768a2127fcffdb2ab28ff92991f

client.mk

@@ -26,10 +26,8 @@
 #                          of MOZ_OBJDIR
 #   MOZ_OBJDIR           - Destination object directory
 #   MOZ_MAKE_FLAGS       - Flags to pass to $(MAKE)
-#   MOZ_PREFLIGHT_ALL  } - Makefiles to run before any project in
-#   MOZ_PREFLIGHT      }   MOZ_BUILD_PROJECTS, before each project, after
-#   MOZ_POSTFLIGHT     }   each project, and after all projects; these
-#   MOZ_POSTFLIGHT_ALL }   variables contain space-separated lists
+#   MOZ_PREFLIGHT_ALL    - Makefiles to run before building.
+#   MOZ_POSTFLIGHT_ALL   - Makefiles to run after building.
 #
 #######################################################################
 # Defines
@@ -275,7 +273,7 @@ endif
 # loop through them.
 
 ifeq (,$(MOZ_CURRENT_PROJECT)$(if $(MOZ_BUILD_PROJECTS),,1))
-configure realbuild preflight postflight $(OBJDIR_TARGETS)::
+configure realbuild $(OBJDIR_TARGETS)::
 	set -e; \
 	for app in $(MOZ_BUILD_PROJECTS); do \
 	  $(MAKE) -f $(TOPSRCDIR)/client.mk $@ MOZ_CURRENT_PROJECT=$$app; \
@@ -391,18 +389,6 @@ $(OBJDIR)/config/autoconf.mk: $(TOPSRCDIR)/config/autoconf.mk.in
 	$(PYTHON) $(OBJDIR)/config.status -n --file=$(OBJDIR)/config/autoconf.mk
 endif
 
-
-####################################
-# Preflight
-
-realbuild preflight::
-ifdef MOZ_PREFLIGHT
-	set -e; \
-	for mkfile in $(MOZ_PREFLIGHT); do \
-	  $(MAKE) -f $(TOPSRCDIR)/$$mkfile preflight TOPSRCDIR=$(TOPSRCDIR) OBJDIR=$(OBJDIR) MOZ_OBJDIR=$(MOZ_OBJDIR); \
-	done
-endif
-
 ####################################
 # Build it
 
@@ -416,17 +402,6 @@ realbuild::  $(OBJDIR)/Makefile $(OBJDIR)/config.status
 $(OBJDIR_TARGETS):: $(OBJDIR)/Makefile $(OBJDIR)/config.status
 	+$(MOZ_MAKE) $@
 
-####################################
-# Postflight
-
-realbuild postflight::
-ifdef MOZ_POSTFLIGHT
-	set -e; \
-	for mkfile in $(MOZ_POSTFLIGHT); do \
-	  $(MAKE) -f $(TOPSRCDIR)/$$mkfile postflight TOPSRCDIR=$(TOPSRCDIR) OBJDIR=$(OBJDIR) MOZ_OBJDIR=$(MOZ_OBJDIR); \
-	done
-endif
-
 endif # MOZ_CURRENT_PROJECT
 
 ####################################
@@ -482,7 +457,5 @@ echo-variable-%:
     everything \
     configure \
     preflight_all \
-    preflight \
-    postflight \
     postflight_all \
     $(OBJDIR_TARGETS)