Bug 1340157: Re-enable compression for omni.ja files r=ted

MozReview-Commit-ID: 7e8j4k61lAx

--HG--
extra : rebase_source : 03e6a76da463cba6fd80167113dae3a1c6360f0a

toolkit/mozapps/installer/upload-files.mk

@@ -361,11 +361,6 @@ endif
 
 ifneq (android,$(MOZ_WIDGET_TOOLKIT))
   OPTIMIZEJARS = 1
-  ifneq (gonk,$(MOZ_WIDGET_TOOLKIT))
-    ifdef NIGHTLY_BUILD
-      DISABLE_JAR_COMPRESSION = 1
-    endif
-  endif
 endif
 
 # A js binary is needed to perform verification of JavaScript minification.