revert: "feat: support external types with type widening (#2010)" (#2031

)

This reverts commit 2e07ee4.

due to #2030

.gitignore

@@ -24,7 +24,7 @@ testdata/**/go.work.sum
 # Leaving old _ftl for now to avoid old stuff getting checked in
 **/testdata/**/_ftl
 **/examples/**/_ftl
-**/types.ftl.go
+**/examples/**/types.ftl.go
 **/testdata/**/.ftl
 **/examples/**/.ftl
 /.ftl

backend/controller/ingress/ingress_integration_test.go

@@ -134,11 +134,6 @@ func TestHttpIngress(t *testing.T) {
 			assert.Equal(t, nil, resp.Headers["Access-Control-Allow-Methods"])
 			assert.Equal(t, nil, resp.Headers["Access-Control-Allow-Headers"])
 		}),
-		in.HttpCall(http.MethodGet, "/external", nil, in.JsonData(t, in.Obj{"message": "hello"}), func(t testing.TB, resp *in.HTTPResponse) {
-			assert.Equal(t, 200, resp.Status)
-			assert.Equal(t, []string{"application/json; charset=utf-8"}, resp.Headers["Content-Type"])
-			assert.Equal(t, in.JsonData(t, in.Obj{"message": "hello"}), resp.BodyBytes)
-		}),
 	)
 }
 

backend/controller/ingress/testdata/go/httpingress/httpingress.go

@@ -6,7 +6,6 @@ import (
 
 	"ftl/builtin"
 
-	lib "github.com/TBD54566975/ftl/go-runtime/compile/testdata"
 	"github.com/TBD54566975/ftl/go-runtime/ftl" // Import the FTL SDK.
 )
 
@@ -179,10 +178,3 @@ func ArrayData(ctx context.Context, req builtin.HttpRequest[[]ArrayType]) (built
 func TypeEnum(ctx context.Context, req builtin.HttpRequest[SumType]) (builtin.HttpResponse[SumType, string], error) {
 	return builtin.HttpResponse[SumType, string]{Body: ftl.Some(req.Body)}, nil
 }
-
-type ExternalAlias lib.NonFTLType
-
-//ftl:ingress http GET /external
-func External(ctx context.Context, req builtin.HttpRequest[ExternalAlias]) (builtin.HttpResponse[ExternalAlias, string], error) {
-	return builtin.HttpResponse[ExternalAlias, string]{Body: ftl.Some(req.Body)}, nil
-}