Move clean/clobber to soong_ui
So that we don't have to load up all the makefile state just to remove
the output directory.
Starting from a completely empty out directory:
kati: 16s
soong_ui: 2.0s
From a minimal out directory (m -j blueprint_tools):
kati: 3.8s
soong_ui: 0.4s
Test: m -j clean
Test: m -j clobber
Change-Id: Iec1ce032c7cc7ed102430080e857fc421b66309c
diff --git a/core/config.mk b/core/config.mk
index 583909d..86915a6 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -847,7 +847,7 @@
# These goals don't need to collect and include Android.mks/CleanSpec.mks
# in the source tree.
-dont_bother_goals := clean clobber dataclean installclean \
+dont_bother_goals := dataclean installclean \
help out \
snod systemimage-nodeps \
stnod systemtarball-nodeps \