Remove partial_sdk step from main buildbot
Remove partial_sdk step from main buildbot

The partial SDK is now obsolete for building the NaCl tree.
This is an incremental step in excising it completely.

BUG=http://code.google.com/p/nativeclient/issues/detail?id=1856
TEST=none

R=ncbray@google.com,bradnelson@google.com

Review URL: http://codereview.chromium.org/7281033

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@5912 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,nacl-webkit/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client