Switch unused deprecated variables to obsolete
These have no references in our master trees, so can now be marked as
obsolete.
Test: grep -R "<VAR> has been" <all build_test logs>
Change-Id: I72d2371176e78f38ed56741dd8527193eec7eae3
diff --git a/Changes.md b/Changes.md
index 05f54b8..53ff007 100644
--- a/Changes.md
+++ b/Changes.md
@@ -1,6 +1,6 @@
# Build System Changes for Android.mk Writers
-## Deprecating envsetup.sh variables in Makefiles
+## Deprecating / obsoleting envsetup.sh variables in Makefiles
It is not required to source envsetup.sh before running a build. Many scripts,
including a majority of our automated build systems, do not do so. Make will
@@ -14,8 +14,9 @@
To fix this, we're marking the variables that are set in envsetup.sh as
deprecated in the makefiles. This will trigger a warning every time one is read
-(or written) inside Kati. Once all the warnings have been removed, we'll switch
-this to obsolete, and any references will become errors.
+(or written) inside Kati. Once all the warnings have been removed for a
+particular variable, we'll switch it to obsolete, and any references will become
+errors.
### envsetup.sh variables with make equivalents