refactor: remove globals attr from rollup_bundle

It repeats what you can do in the rollup.config.js without a good reason

Also remove the fixture that was testing against the goldens of the old
rollup_bundle rule - we'll have new integration test for new impl so
that one served its purpose during the re-implementation.

internal/rollup/test/rollup/BUILD.bazel

@@ -1,9 +1,6 @@
 load("@build_bazel_rules_nodejs//:index.bzl", "rollup_bundle")
 load("@npm_bazel_jasmine//:index.from_src.bzl", "jasmine_node_test")
 
-# Tests in the new implementation want to reuse the golden files
-exports_files(glob(["*.js_"]))
-
 rollup_bundle(
     name = "bundle",
     srcs = ["bar.js"],

packages/rollup/src/rollup_bundle.bzl

@@ -125,13 +125,6 @@ Either this attribute or `entry_point` must be specified, but not both.
         values = ["amd", "cjs", "esm", "iife", "umd", "system"],
         default = "esm",
     ),
-    "globals": attr.string_dict(
-        doc = """Specifies id: variableName pairs necessary for external imports in umd/iife bundles.
-
-Passed to the [`--globals` option](https://github.com/rollup/rollup/blob/master/docs/999-big-list-of-options.md#outputglobals) in Rollup.
-Also, the keys from the map are passed to the [`--external` option](https://github.com/rollup/rollup/blob/master/docs/999-big-list-of-options.md#external).
-""",
-    ),
     "output_dir": attr.bool(
         doc = """Whether to produce a directory output.
 
@@ -277,12 +270,6 @@ def _rollup_bundle(ctx):
     if (ctx.attr.sourcemap and ctx.attr.sourcemap != "false"):
         args.add_all(["--sourcemap", ctx.attr.sourcemap])
 
-    if ctx.attr.globals:
-        args.add("--external")
-        args.add_joined(ctx.attr.globals.keys(), join_with = ",")
-        args.add("--globals")
-        args.add_joined(["%s:%s" % g for g in ctx.attr.globals.items()], join_with = ",")
-
     ctx.actions.run(
         progress_message = "Bundling JavaScript %s [rollup]" % outputs[0].short_path,
         executable = ctx.executable.rollup_bin,