rebase: use latest google.golang.org/grpc version

google.golang.org/grpc was listed in go.mod:replace and updating the
dependency was not possible. There should not be a reason to prevent
updating, commit 5aca04d540 added it but without explanation.

Signed-off-by: Niels de Vos <ndevos@redhat.com>

vendor/google.golang.org/grpc/vet.sh

@@ -28,29 +28,18 @@ cleanup() {
 }
 trap cleanup EXIT
 
-PATH="${GOPATH}/bin:${GOROOT}/bin:${PATH}"
+PATH="${HOME}/go/bin:${GOROOT}/bin:${PATH}"
+go version
 
 if [[ "$1" = "-install" ]]; then
-  # Check for module support
-  if go help mod >& /dev/null; then
-    # Install the pinned versions as defined in module tools.
-    pushd ./test/tools
-    go install \
-      golang.org/x/lint/golint \
-      golang.org/x/tools/cmd/goimports \
-      honnef.co/go/tools/cmd/staticcheck \
-      github.com/client9/misspell/cmd/misspell
-    popd
-  else
-    # Ye olde `go get` incantation.
-    # Note: this gets the latest version of all tools (vs. the pinned versions
-    # with Go modules).
-    go get -u \
-      golang.org/x/lint/golint \
-      golang.org/x/tools/cmd/goimports \
-      honnef.co/go/tools/cmd/staticcheck \
-      github.com/client9/misspell/cmd/misspell
-  fi
+  # Install the pinned versions as defined in module tools.
+  pushd ./test/tools
+  go install \
+    golang.org/x/lint/golint \
+    golang.org/x/tools/cmd/goimports \
+    honnef.co/go/tools/cmd/staticcheck \
+    github.com/client9/misspell/cmd/misspell
+  popd
   if [[ -z "${VET_SKIP_PROTO}" ]]; then
     if [[ "${TRAVIS}" = "true" ]]; then
       PROTOBUF_VERSION=3.14.0
@@ -104,12 +93,6 @@ git grep '"github.com/envoyproxy/go-control-plane/envoy' -- '*.go' ':(exclude)*.
 # TODO: Remove when we drop Go 1.10 support
 go list -f {{.Dir}} ./... | xargs go run test/go_vet/vet.go
 
-# - gofmt, goimports, golint (with exceptions for generated code), go vet.
-gofmt -s -d -l . 2>&1 | fail_on_output
-goimports -l . 2>&1 | not grep -vE "\.pb\.go"
-golint ./... 2>&1 | not grep -vE "\.pb\.go:"
-go vet -all ./...
-
 misspell -error .
 
 # - Check that generated proto files are up to date.
@@ -119,12 +102,22 @@ if [[ -z "${VET_SKIP_PROTO}" ]]; then
     (git status; git --no-pager diff; exit 1)
 fi
 
-# - Check that our modules are tidy.
-if go help mod >& /dev/null; then
-  find . -name 'go.mod' | xargs -IXXX bash -c 'cd $(dirname XXX); go mod tidy'
+# - gofmt, goimports, golint (with exceptions for generated code), go vet,
+# go mod tidy.
+# Perform these checks on each module inside gRPC.
+for MOD_FILE in $(find . -name 'go.mod'); do
+  MOD_DIR=$(dirname ${MOD_FILE})
+  pushd ${MOD_DIR}
+  go vet -all ./... | fail_on_output
+  gofmt -s -d -l . 2>&1 | fail_on_output
+  goimports -l . 2>&1 | not grep -vE "\.pb\.go"
+  golint ./... 2>&1 | not grep -vE "/testv3\.pb\.go:"
+
+  go mod tidy
   git status --porcelain 2>&1 | fail_on_output || \
     (git status; git --no-pager diff; exit 1)
-fi
+  popd
+done
 
 # - Collection of static analysis checks
 #
@@ -141,8 +134,11 @@ not grep -Fv '.CredsBundle
 .NewAddress
 .NewServiceConfig
 .Type is deprecated: use Attributes
+BuildVersion is deprecated
 balancer.ErrTransientFailure
 balancer.Picker
+extDesc.Filename is deprecated
+github.com/golang/protobuf/jsonpb is deprecated
 grpc.CallCustomCodec
 grpc.Code
 grpc.Compressor
@@ -164,13 +160,7 @@ grpc.WithServiceConfig
 grpc.WithTimeout
 http.CloseNotifier
 info.SecurityVersion
-resolver.Backend
-resolver.GRPCLB
-extDesc.Filename is deprecated
-BuildVersion is deprecated
-github.com/golang/protobuf/jsonpb is deprecated
 proto is deprecated
-xxx_messageInfo_
 proto.InternalMessageInfo is deprecated
 proto.EnumName is deprecated
 proto.ErrInternalBadWireType is deprecated
@@ -184,7 +174,12 @@ proto.RegisterExtension is deprecated
 proto.RegisteredExtension is deprecated
 proto.RegisteredExtensions is deprecated
 proto.RegisterMapType is deprecated
-proto.Unmarshaler is deprecated' "${SC_OUT}"
+proto.Unmarshaler is deprecated
+resolver.Backend
+resolver.GRPCLB
+Target is deprecated: Use the Target field in the BuildOptions instead.
+xxx_messageInfo_
+' "${SC_OUT}"
 
 # - special golint on package comments.
 lint_package_comment_per_package() {