feat(core): remove ViewEncapsulation.Native (#38882)

Removes `ViewEncapsulation.Native` which has been deprecated for several major versions.

BREAKING CHANGES:
* `ViewEncapsulation.Native` has been removed. Use `ViewEncapsulation.ShadowDom` instead. Existing
usages will be updated automatically by `ng update`.

PR Close #38882

packages/compiler-cli/test/ngtsc/fake_core/index.ts

@@ -77,7 +77,7 @@ export type ɵɵPipeDefWithMeta<PipeT, NameT> = any;
 
 export enum ViewEncapsulation {
   Emulated = 0,
-  Native = 1,
+  // Historically the 1 value was for `Native` encapsulation which has been removed as of v11.
   None = 2,
   ShadowDom = 3
 }