Remove precompilation flag.
Remove precompilation flag.

Starting with 1.3.8 precompilation is enabled by default.
See http://code.google.com/p/googleappengine/wiki/SdkReleaseNotes


git-svn-id: 095a516e186c72f46b708383d0d3f28c2432e8a1@583 e30e9e8f-1b4c-0410-881d-6f13584adfe0

imirkin/rietveld,imirkin/rietveld