cmd/protoc-gen-go: remove reference to legacy ProtoPackageIsVersion4
A reference to this constant was originally generated to ensure that users
were using a sufficiently new version of the github.com/golnag/protobuf
module to avoid subtle runtime incompatibility issues.
Such a technique is not needed if users were using modules,
which would enforce this constraint based on our go.mod requirements.
When we first released the google.golang.org/protobuf module,
we suggested that we would consider removing it after 6 months.
It has now been 7 months since the release.
Fixes golang/protobuf#1077
Change-Id: I9f2010da27b27fe6b12541a15833721441df8409
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/259901
Reviewed-by: Damien Neil <dneil@google.com>
Trust: Joe Tsai <thebrokentoaster@gmail.com>
diff --git a/cmd/protoc-gen-go/internal_gengo/main.go b/cmd/protoc-gen-go/internal_gengo/main.go
index 5f55976..7081933 100644
--- a/cmd/protoc-gen-go/internal_gengo/main.go
+++ b/cmd/protoc-gen-go/internal_gengo/main.go
@@ -88,12 +88,6 @@
g.P("_ = ", protoimplPackage.Ident("EnforceVersion"), "(", protoimplPackage.Ident("MaxVersion"), " - ", protoimpl.GenVersion, ")")
g.P(")")
g.P()
-
- // TODO: Remove this after some soak-in period after the v2 release.
- g.P("// This is a compile-time assertion that a sufficiently up-to-date version")
- g.P("// of the legacy proto package is being used.")
- g.P("const _ = ", protoV1Package.Ident("ProtoPackageIsVersion4"))
- g.P()
}
for i, imps := 0, f.Desc.Imports(); i < imps.Len(); i++ {
