Turn off GOCACHE when building go

This removes the pkg/obj/... files, which aren't present in the official
packages on golang.org, and are ~68MB for linux.

Test: prebuilts/build-tools/build-prebuilts.sh
Test: m blueprint_tools with resulting binaries
Change-Id: I37a868409f1d609915cab1961b83546237156cd3
1 file changed
tree: 88c331547004491e2f502a04bbb4b6eb12e21331
  1. common/
  2. darwin-x86/
  3. linux-x86/
  4. build-prebuilts.sh
  5. manifest.xml
  6. OWNERS