xbuddy: Remove the 'project_sdk' image target.

This is no longer used.

CQ-DEPEND=CL:283923
BUG=chromium:507508
TEST=xbuddy_unittest

Change-Id: I46f92d6366fadc01b89d53d53b48a65a840dff70
Reviewed-on: https://chromium-review.googlesource.com/283926
Tested-by: Gilad Arnold <garnold@chromium.org>
Reviewed-by: Chris Sosa <sosa@chromium.org>
Commit-Queue: Gilad Arnold <garnold@chromium.org>
diff --git a/xbuddy_config.ini b/xbuddy_config.ini
index 414c198..f0637b9 100644
--- a/xbuddy_config.ini
+++ b/xbuddy_config.ini
@@ -24,7 +24,3 @@
 canary: remote/BOARD/latest-canary/test
 release: remote/BOARD/latest-official/test
 paladin: remote/BOARD/latest-official-paladin/test
-project_sdk: remote/BOARD/VERSION/test
-
-[LOCATION_SUFFIXES]
-project_sdk: -project-sdk