build: hide @angular/http for Angular v8 (#29550)

Currently our plan is to skip the publish, docgen, and update steps for this package.
During RC, we'll determine if the breaking change is too difficult for users, in which case we might restore the package for another major.

PR Close #29550

packages/http/BUILD.bazel

@@ -25,7 +25,8 @@ ng_package(
     ],
     entry_point = "packages/http/index.js",
     tags = [
-        "release-with-framework",
+        # Currently the plan for Angular v8 is to exclude @angular/http package from publishing
+        # "release-with-framework",
     ],
     # Do not add more to this list.
     # Dependencies on the full npm_package cause long re-builds.