remove from API delete()/IsDeleted(), and deleted check from prepForXml; not useful in declarative style API

src/file/xml-components/xml-component.spec.ts

@@ -1,8 +1,7 @@
 import { expect } from "chai";
 
 import { Formatter } from "export/formatter";
-import { EMPTY_OBJECT, XmlComponent } from "./";
-import { IContext } from "./base";
+import { XmlComponent } from "./";
 
 class TestComponent extends XmlComponent {}
 
@@ -21,21 +20,4 @@ describe("XmlComponent", () => {
             });
         });
     });
-
-    describe("#prepForXml()", () => {
-        it("should skip deleted elements", () => {
-            const child = new TestComponent("w:test1");
-            child.delete();
-            xmlComponent.addChildElement(child);
-
-            // tslint:disable-next-line: no-object-literal-type-assertion
-            const xml = xmlComponent.prepForXml({} as IContext);
-
-            if (!xml) {
-                return;
-            }
-
-            expect(xml["w:test"]).to.deep.equal(EMPTY_OBJECT);
-        });
-    });
 });