Remove java_tools from gitsync.
The sync is broken, because a change was directly pushed to their GitHub repo.
# direction can be ==> or <=>
REPOSITORIES=(
"https://bazel.googlesource.com/bazel ==> git@github.com:bazelbuild/bazel.git bazel"
- "https://bazel.googlesource.com/java_tools ==> git@github.com:bazelbuild/java_tools.git java_tools"
"https://bazel.googlesource.com/tulsi ==> git@github.com:bazelbuild/tulsi.git tulsi"
)
