remove redundant empty export

Author: a-tarasyuk

internal/transformers/declarations/transform.go

@@ -270,7 +270,7 @@ func (tx *DeclarationTransformer) transformAndReplaceLatePaintedStatements(state
 					if needsScopeMarker(elem) {
 						tx.needsScopeFixMarker = true
 					}
-					if ast.IsSourceFile(statement.Parent) && ast.IsExternalModuleIndicator(replacement) {
+					if ast.IsSourceFile(statement.Parent) && ast.IsExternalModuleIndicator(elem) {
 						tx.resultHasExternalModuleIndicator = true
 					}
 				}

testdata/baselines/reference/submodule/compiler/declarationEmitDefaultExportWithStaticAssignment.js

@@ -109,4 +109,3 @@ export declare namespace C {
     var A: () => void;
     var B: () => void;
 }
-export {};

testdata/baselines/reference/submodule/compiler/declarationEmitDefaultExportWithStaticAssignment.js.diff

@@ -17,9 +17,4 @@
 +const foo_1 = require("./foo");
  Object.defineProperty(exports, "Foo", { enumerable: true, get: function () { return foo_1.Foo; } });
  function Example() { }
- Example.Foo = foo_1.Foo;
-@@= skipped -58, +58 lines =@@
-     var A: () => void;
-     var B: () => void;
- }
-+export {};
+ Example.Foo = foo_1.Foo;

testdata/baselines/reference/submodule/compiler/declarationEmitExpandoPropertyPrivateName.js

@@ -34,4 +34,3 @@ export declare function q(): void;
 export declare namespace q {
     var val: I;
 }
-export {};

testdata/baselines/reference/submodule/compiler/declarationEmitExpandoPropertyPrivateName.js.diff

@@ -9,14 +9,12 @@
  function q() { }
  q.val = (0, a_1.f)();
 
-@@= skipped -9, +9 lines =@@
- interface I {
+@@= skipped -10, +10 lines =@@
  }
  export declare function f(): I;
-+export {};
+ export {};
 +//// [b.d.ts]
 +export declare function q(): void;
 +export declare namespace q {
 +    var val: I;
-+}
- export {};
++}

testdata/baselines/reference/submodule/compiler/declarationEmitLateBoundAssignments.js

@@ -40,4 +40,3 @@ export declare namespace foo {
     var bar: number;
     var strMemName: string;
 }
-export {};

testdata/baselines/reference/submodule/compiler/declarationEmitLateBoundAssignments.js.diff

@@ -30,4 +30,3 @@ export declare namespace foo {
     var bar: number;
     var strMemName: string;
 }
-export {};

testdata/baselines/reference/submodule/compiler/declarationEmitLateBoundJSAssignments.js

@@ -12,5 +12,4 @@
 +export declare namespace foo {
 +    var bar: number;
 +    var strMemName: string;
- }
-+export {};
+ }

testdata/baselines/reference/submodule/compiler/declarationEmitLateBoundJSAssignments.js.diff

@@ -22,4 +22,3 @@ export declare function foo(): void;
 export declare namespace foo {
     var bar: number;
 }
-export {};