Merge to XFA: CJS_Context::compile unused

Manual merge in fpdfsdk/src/javascript/JS_Context.cpp

(cherry picked from commit 6e945a1ebbacde3ed2a4fc83ccb7215ccbc46931)
Original Review URL: https://codereview.chromium.org/1318543012 .

R=thestig@chromium.org

Review URL: https://codereview.chromium.org/1318343004 .
5 files changed