Remove unused LEGACY_SKYLARK_NAME from ProtoInfo
The legacy `.proto` provider has been removed in https://github.com/bazelbuild/bazel/issues/7152.
Closes #10591.
PiperOrigin-RevId: 293101268
diff --git a/src/main/java/com/google/devtools/build/lib/rules/proto/ProtoInfo.java b/src/main/java/com/google/devtools/build/lib/rules/proto/ProtoInfo.java
index 5f9eb18..d164dd4 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/proto/ProtoInfo.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/proto/ProtoInfo.java
@@ -45,14 +45,6 @@
public static final Provider PROVIDER = new Provider();
- /**
- * The name of the field in Skylark used to access this class.
- *
- * <p>This is for legacy {@code ctx.attr.deps.proto.}-style access. Those should eventually be
- * migrated to {@code ctx.attr.deps[ProtoInfo]}.
- */
- public static final String LEGACY_SKYLARK_NAME = "proto";
-
private final ImmutableList<Artifact> directProtoSources;
private final ImmutableList<Artifact> originalDirectProtoSources;
private final String directProtoSourceRoot;
