[release/v1.1] Remove the vendored file and reference the official googleapis proto package#354

w1am merged 2 commits intorelease/v1.1kurrent-io/KurrentDB-Client-Java:release/v1.1from

cherry-pick/353/w1am/use-common-proto-release/v1.1kurrent-io/KurrentDB-Client-Java:cherry-pick/353/w1am/use-common-proto-release/v1.1Copy head branch name to clipboard