[flow] Fix implicit instantiation test

Summary:
This error was introduced in D55456495, however the test case is not meant to error, it was just incorrect in passing in `interface {}`. Fix the test case.

Changelog: [internal]

Reviewed By: SamChou19815

Differential Revision: D57389641

fbshipit-source-id: 6fa9ee9c7d2fb59060a4e25a22ae92e87187829c

tests/contextual_typing/contextual_typing.exp

@@ -538,22 +538,6 @@ References:
                                ^^^^ [1]
 
 
-Error --------------------------------------------------------------------------------- implicit_instantiation.js:211:21
-
-Cannot instantiate `Record` because interface type [1] is not a subtype of object type [2]. Class instances are not
-subtypes of object types; consider rewriting object type [2] as an interface in type argument `T`.
-[class-object-subtyping]
-
-   implicit_instantiation.js:211:21
-   211|     records: Record<interface {}>,
-                            ^^^^^^^^^^^^ [1]
-
-References:
-   implicit_instantiation.js:203:18
-   203|   type Record<T: {...}> = { ...T, ... };
-                         ^^^^^ [2]
-
-
 Error -------------------------------------------------------------------------------------------- intersections.js:7:24
 
 Cannot cast `x` to number because string [1] is incompatible with number [2]. [incompatible-cast]
@@ -1262,4 +1246,4 @@ References:
 
 
 
-Found 91 errors
+Found 90 errors

tests/contextual_typing/implicit_instantiation.js

@@ -208,7 +208,7 @@ function test20() {
 
   const result: (
     value: mixed,
-    records: Record<interface {}>,
+    records: Record<{...}>,
   ) => any = fn((value, records) => 42); // okay
 }