refactor: simplify resolveDyanmicComponent

packages/compiler-core/__tests__/transforms/transformElement.spec.ts

@@ -814,8 +814,7 @@ describe('compiler: element transform', () => {
             {
               type: NodeTypes.SIMPLE_EXPRESSION,
               content: 'foo'
-            },
-            '$'
+            }
           ]
         }
       })

packages/compiler-core/src/transforms/transformElement.ts

@@ -215,11 +215,9 @@ export function resolveComponentType(
     }
     // dynamic <component :is="asdf" />
     else if (isProp.exp) {
-      return createCallExpression(
-        context.helper(RESOLVE_DYNAMIC_COMPONENT),
-        // _ctx.$ exposes the owner instance of current render function
-        [isProp.exp, context.prefixIdentifiers ? `_ctx.$` : `$`]
-      )
+      return createCallExpression(context.helper(RESOLVE_DYNAMIC_COMPONENT), [
+        isProp.exp
+      ])
     }
   }