Removed some unused private functions

src/harness/fourslash.ts

@@ -2074,10 +2074,6 @@ module FourSlash {
             }
         }
 
-        private getEOF(): number {
-            return this.languageServiceShimHost.getScriptSnapshot(this.activeFile.fileName).getLength();
-        }
-
         // Get the text of the entire line the caret is currently at
         private getCurrentLineContent() {
             // The current caret position (in line/col terms)
@@ -2193,10 +2189,6 @@ module FourSlash {
             return result;
         }
 
-        private getCurrentLineNumberZeroBased() {
-            return this.getCurrentLineNumberOneBased() - 1;
-        }
-
         private getCurrentLineNumberOneBased() {
             return this.languageServiceShimHost.positionToZeroBasedLineCol(this.activeFile.fileName, this.currentCaretPosition).line + 1;
         }

src/services/services.ts

@@ -761,10 +761,6 @@ module ts {
             return this.namedDeclarations;
         }
 
-        private isDeclareFile(): boolean {
-            return TypeScript.isDTSFile(this.filename);
-        }
-
         public update(scriptSnapshot: TypeScript.IScriptSnapshot, version: string, isOpen: boolean, textChangeRange: TypeScript.TextChangeRange): SourceFile {
             if (textChangeRange && Debug.shouldAssert(AssertionLevel.Normal)) {
                 var oldText = this.scriptSnapshot;