Undo the accidental config.h changes in the pcre 10.40 update. am: 9d36739ecc

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/pcre/+/17942982

Change-Id: I6d817bde3b1c7bbaef1b35556e0bf19903cb0130
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>