Simplify interfaces, reduce duplication

src/Interfaces.ts

@@ -38,10 +38,7 @@ export interface ILinkifierAccessor {
 export interface ITerminal extends PublicTerminal, ILinkifierAccessor, IBufferAccessor, IElementAccessor {
   selectionManager: ISelectionManager;
   charMeasure: ICharMeasure;
-  textarea: HTMLTextAreaElement;
   renderer: IRenderer;
-  rows: number;
-  cols: number;
   browser: IBrowser;
   writeBuffer: string[];
   cursorHidden: boolean;
@@ -61,10 +58,8 @@ export interface ITerminal extends PublicTerminal, ILinkifierAccessor, IBufferAc
   scrollLines(disp: number, suppressScrollEvent?: boolean): void;
   cancel(ev: Event, force?: boolean): boolean | void;
   log(text: string): void;
-  reset(): void;
   showCursor(): void;
   blankLine(cur?: boolean, isWrapped?: boolean, cols?: number): LineData;
-  refresh(start: number, end: number): void;
 }
 
 /**

typings/xterm.d.ts

@@ -354,22 +354,6 @@ declare module 'xterm' {
      */
     selectAll(): void;
 
-    // /**
-    //  * Find the next instance of the term, then scroll to and select it. If it
-    //  * doesn't exist, do nothing.
-    //  * @param term Tne search term.
-    //  * @return Whether a result was found.
-    //  */
-    // findNext(term: string): boolean;
-
-    // /**
-    //  * Find the previous instance of the term, then scroll to and select it. If it
-    //  * doesn't exist, do nothing.
-    //  * @param term Tne search term.
-    //  * @return Whether a result was found.
-    //  */
-    // findPrevious(term: string): boolean;
-
     /**
      * Destroys the terminal and detaches it from the DOM.
      */