Switches the grpc-repo dockerfiles to pull gRPC source from GitHub
diff --git a/tools/dockerfile/grpc_cxx/Dockerfile b/tools/dockerfile/grpc_cxx/Dockerfile
index cf38e97..ea3a1db 100644
--- a/tools/dockerfile/grpc_cxx/Dockerfile
+++ b/tools/dockerfile/grpc_cxx/Dockerfile
@@ -1,15 +1,18 @@
 # Dockerfile for gRPC C++
 FROM grpc/base
 
-# Start the daemon that allows access to the protected git-on-borg repos
-RUN /var/local/git/gcompute-tools/git-cookie-authdaemon
+# Get the source from GitHub
+RUN git clone git@github.com:google/grpc.git /var/local/git/grpc
+RUN cd /var/local/git/grpc && \
+  git pull --recurse-submodules && \
+  git submodule update --init --recursive
 
-RUN git clone https://team.googlesource.com/one-platform-grpc-team/grpc /var/local/git/grpc
-RUN cd /var/local/git/grpc \
-  && git pull --recurse-submodules \
-  && git submodule update --init --recursive
-
+# Build the protobuf library; then the C core.
+RUN cd /var/local/git/grpc/third_party/protobuf && \
+  ./autogen.sh && \
+  ./configure --prefix=/usr && \
+  make -j12 && make check && make install && make clean
 RUN make install -C /var/local/git/grpc
 
 # Define the default command.
-CMD ["bash"]
\ No newline at end of file
+CMD ["bash"]