carto/protobuf @ revert-6272-MutableSequence-import

Rafi Kamal 58d4420e2d Down Integrate Internal Changes		5 lat temu
..
src	58d4420e2d Down Integrate Internal Changes	5 lat temu
generate-sources-build.xml	49efe9d7db Restructuring protobuf to multiple modules	9 lat temu
generate-test-sources-build.xml	ef1e8e7172 Add module for JavaLite and fix builds	6 lat temu
pom.xml	175ddfc175 Add com.google.truth as test dependencies	6 lat temu