Use old memcpy for wrappers

BUILD

Makefile

binding.gyp

build.yaml

gRPC.podspec

grpc.gemspec

package.json

setup.py

src/core/support/wrap_memcpy.c

src/python/grpcio/grpc_core_dependencies.py

src/ruby/ext/grpc/extconf.rb

templates/Makefile.template

templates/binding.gyp.template

tools/doxygen/Doxyfile.core.internal

tools/run_tests/sources_and_headers.json

vsprojects/vcxproj/gpr/gpr.vcxproj

vsprojects/vcxproj/gpr/gpr.vcxproj.filters