Remove duplicat es2018 tests

tests/cases/conformance/es2018/dynamicImport/importCallExpression2ES2018.ts

@@ -1,10 +1,17 @@
 // @module: es2018
-// @lib: es2015
+// @target: esnext
 // @filename: 0.ts
-export function foo(){}
+export class B {
+    print() { return "I am B"}
+}
 
-// @filename: 1.ts
-import * as Zero from "./0"  // Should preserve ES2015 module syntax
-import("./0");
-var p1 = import("./0");
-export default p1;
+// @filename: 2.ts
+// We use Promise<any> for now as there is no way to specify shape of module object
+function foo(x: Promise<any>) {
+    x.then(value => {
+        let b = new value.B();
+        b.print();
+    })
+}
+
+foo(import("./0"));

tests/cases/conformance/es2018/dynamicImport/importCallExpression3ES2018.ts

@@ -6,12 +6,9 @@ export class B {
 }
 
 // @filename: 2.ts
-// We use Promise<any> for now as there is no way to specify shape of module object
-function foo(x: Promise<any>) {
-    x.then(value => {
-        let b = new value.B();
-        b.print();
-    })
+async function foo() {
+    class C extends (await import("./0")).B {}
+    var c = new C();
+    c.print();
 }
-
-foo(import("./0"));
+foo();

tests/cases/conformance/es2018/dynamicImport/importCallExpression4ES2018.ts

@@ -5,10 +5,22 @@ export class B {
     print() { return "I am B"}
 }
 
+export function foo() { return "foo" }
+
+// @filename: 1.ts
+export function backup() { return "backup"; }
+
 // @filename: 2.ts
-async function foo() {
-    class C extends (await import("./0")).B {}
-    var c = new C();
-    c.print();
-}
-foo();
+declare var console: any;
+class C {
+    private myModule = import("./0");
+    method() {
+        this.myModule.then(Zero => {
+            console.log(Zero.foo());
+        }, async err => {
+            console.log(err);
+            let one = await import("./1");
+            console.log(one.backup());
+        });
+    }
+}

tests/cases/conformance/es2018/dynamicImport/importCallExpression5ES2018.ts

@@ -1,26 +0,0 @@
-// @module: es2018
-// @target: esnext
-// @filename: 0.ts
-export class B {
-    print() { return "I am B"}
-}
-
-export function foo() { return "foo" }
-
-// @filename: 1.ts
-export function backup() { return "backup"; }
-
-// @filename: 2.ts
-declare var console: any;
-class C {
-    private myModule = import("./0");
-    method() {
-        this.myModule.then(Zero => {
-            console.log(Zero.foo());
-        }, async err => {
-            console.log(err);
-            let one = await import("./1");
-            console.log(one.backup());
-        });
-    }
-}