Remove unused eclipse projects.

This CL removes:
external/eclipse-basebuilder/
external/eclipse-windowbuilder/
prebuilts/eclipse/
prebuilts/eclipse-build-deps/

Bug: 32116178
Test: None

Merged-In: I0f1edefed63f8e97104f3575ce85c06cada48451
Change-Id: I0f1edefed63f8e97104f3575ce85c06cada48451
(cherry picked from commit 068706dc5863868dd7045e7cafc7e6c5df620926)
1 file changed
tree: f2a2f0ab628e362fc600d4bc8e9ae37419faef4d
  1. default.xml
  2. GLOBAL-PREUPLOAD.cfg