eliminated duplicate implementation of strikethrough

ts/docx/run/index.ts

@@ -1,10 +1,9 @@
 import { Break } from "./break";
 import { Caps, SmallCaps } from "./caps";
-import { Bold, Color, Italics, Size } from "./formatting";
+import { Bold, Color, DoubleStrike, Italics, Size, Strike } from "./formatting";
 import { RunProperties } from "./properties";
 import { RunFonts } from "./run-fonts";
 import { SubScript, SuperScript } from "./script";
-import { DoubleStrike, Strike } from "./strike";
 import { Style } from "./style";
 import { Tab } from "./tab";
 import { Underline } from "./underline";

ts/docx/run/strike.ts

@@ -1,15 +0,0 @@
-import { XmlComponent } from "../xml-components";
-
-export class Strike extends XmlComponent {
-
-    constructor() {
-        super("w:strike");
-    }
-}
-
-export class DoubleStrike extends XmlComponent {
-
-    constructor() {
-        super("w:dstrike");
-    }
-}

ts/tests/docx/run/strikeTests.ts

@@ -1,5 +1,5 @@
 import { assert } from "chai";
-import { DoubleStrike, Strike } from "../../../docx/run/strike";
+import { DoubleStrike, Strike } from "../../../docx/run/formatting";
 import { Utility } from "../../utility";
 
 describe("Strike", () => {