Migrate stringslint.py to AyeAye.

This script has been deprecated and replaced by AyeAye checks
directly in Gerrit.

Bug: 164530987
Test: none
Change-Id: Ia1baf761e5ca6a1cef7de231d0f320cfaa7e071a

PREUPLOAD.cfg

@@ -1,8 +1,6 @@
 [Hook Scripts]
 checkcolor_hook = ${REPO_ROOT}/prebuilts/checkcolor/checkcolor.py -p .
 
-strings_lint_hook = ${REPO_ROOT}/frameworks/base/tools/stringslint/stringslint_sha.sh ${PREUPLOAD_COMMIT}
-
 checkstyle_hook = ${REPO_ROOT}/prebuilts/checkstyle/checkstyle.py --sha ${PREUPLOAD_COMMIT}
 
 robolectric_hook = ${REPO_ROOT}/packages/apps/Settings/tests/robotests/new_tests_hook.sh ${REPO_PROJECT}