remove protobuf dependencies

Signed-off-by: Bruno Vavala <bruno.vavala@intel.com>

build/Makefile

@@ -90,7 +90,6 @@ $(PYTHON_DIR) :
 	. $(abspath $(DSTDIR)/bin/activate) && pip install --upgrade twisted
 	. $(abspath $(DSTDIR)/bin/activate) && pip install --upgrade pyyaml
 	. $(abspath $(DSTDIR)/bin/activate) && pip install --upgrade google
-	. $(abspath $(DSTDIR)/bin/activate) && pip install --upgrade protobuf==3.19.0
 	. $(abspath $(DSTDIR)/bin/activate) && pip install secp256k1==0.13.2
 	. $(abspath $(DSTDIR)/bin/activate) && pip install --upgrade cryptography
 	. $(abspath $(DSTDIR)/bin/activate) && pip install --upgrade pyparsing

build/__tools__/verify-pre-build.sh

@@ -48,12 +48,6 @@ yell --------------- CONFIG AND ENVIRONMENT PRE-BUILD CHECK ---------------
 
 $(pkg-config --atleast-version=1.1.0g openssl) || warn "WARNING: Openssl version found in PKG_CONFIG_PATH must be 1.1.0g or greater"
 
-try command -v protoc
-PROTOC_VERSION=$(protoc --version | sed 's/libprotoc \([0-9]\).*/\1/')
-if [[ "$PROTOC_VERSION" -lt 3 ]]; then
-    warn "protoc must be version3 or higher"
-fi
-
 try command -v python3
 try command -v cmake
 try command -v swig

docker/Dockerfile.pdo-dev

@@ -70,7 +70,6 @@ ARG SGXSSL=2.10_1.1.1g
 ARG ADD_APT_PKGS=
 
 # Add necessary packages
-# TODO(xenial): we need to manually install protobuf 3 as xenial has v2
 # Note: ocamlbuild is required by PREREQ but does not exist for xenial. However, the relevant componets are part of 'ocaml' package, later ubuntu split up that package ...
 RUN apt-get update \
  && DEBIAN_FRONTEND="noninteractive" \
@@ -87,7 +86,6 @@ RUN apt-get update \
     gnupg \
     libcurl4-openssl-dev \
     liblmdb-dev \
-    libprotobuf-dev \
     libsecp256k1-dev \
     libssl-dev \
     libtool \
@@ -96,7 +94,6 @@ RUN apt-get update \
     ocaml \
     ocamlbuild \
     pkg-config \
-    protobuf-compiler \
     python \
     python3-dev \
     python3-venv \

docs/host_install.md

@@ -30,7 +30,7 @@ distributions will require similar packages.
 ```bash
 sudo apt install -y cmake curl git pkg-config unzip xxd libssl-dev build-essential
 sudo apt install -y swig python3 python3-dev python3-venv virtualenv
-sudo apt install -y liblmdb-dev libprotobuf-dev libsecp256k1-dev protobuf-compiler libncurses5-dev
+sudo apt install -y liblmdb-dev libsecp256k1-dev libncurses5-dev
 ```
 
 <!--

python/Makefile

@@ -51,12 +51,6 @@ COMMON_LIB = ../common/build/libupdo-common.a
 
 all: $(EGG_FILE)
 
-#$(PROTOBUF_DPATH)%_pb2.py : $(PROTOBUF_SPATH)%.proto
-#	protoc --python_out=$(PROTOBUF_DPATH) --proto_path=$(PROTOBUF_SPATH) $<
-
-#$(addprefix $(PROTOBUF_DPATH),$(PROTOBUF_PYTHON)) : $(addprefix $(PROTOBUF_SPATH),$(PROTOBUF_SOURCE))
-
-#$(EGG_FILE) : $(CRYPTO_SWIG_TARGET) $(KV_SWIG_TARGET) $(addprefix $(PROTOBUF_DPATH),$(PROTOBUF_PYTHON)) $(PYTHON_SOURCE)
 $(EGG_FILE) : $(CRYPTO_SWIG_TARGET) $(KV_SWIG_TARGET) $(PYTHON_SOURCE)
 	@ . $(abspath $(DSTDIR)/bin/activate) && \
 		python setup.py bdist_egg
@@ -73,7 +67,6 @@ test: install
 	(cd ../common/tests/crypto && python test_cryptoWrapper.py)
 
 clean:
-	#rm -f $(addprefix $(PROTOBUF_DPATH),$(PROTOBUF_PYTHON))
 	@ . $(abspath $(DSTDIR)/bin/activate) && \
 		python setup.py clean --all