remove unncessary function declaration

Author: zmiao

flow-typed/cheap-ruler.js

@@ -5,20 +5,8 @@ declare module "cheap-ruler" {
         ky: number;
         constructor(lat: number, units: string): CheapRuler;
         distance(a: GeometryPoint, b: GeometryPoint): number;
-        bearing(a: GeometryPoint, b: GeometryPoint): number;
-        destination(p: GeometryPoint, dist: number , bearing: number): GeometryPoint;
-        offset(p: GeometryPoint, dx: number, dy: number): GeometryPoint;
-        lineDistance(points: Array<GeometryPoint>): number;
-        area(polygon: Array<Array<GeometryPoint>>): number;
-        along(line: Array<GeometryPoint>, dist: number): GeometryPoint;
         pointToSegmentDistance(p: GeometryPoint, a: GeometryPoint, b: GeometryPoint) : number;
         pointOnLine(line: Array<GeometryPoint>, p: GeometryPoint): Object;
-        lineSlice(start: GeometryPoint, stop: GeometryPoint, line: Array<GeometryPoint>): Array<GeometryPoint>;
-        lineSliceAlong(start: GeometryPoint, stop: GeometryPoint, line: Array<GeometryPoint>): Array<GeometryPoint>;
-        bufferPoint(p: GeometryPoint, buffer: number): GeometryPoint;
-        bufferBBox(bbox: GeometryPoint, buffer: number): GeometryPoint;
-        insideBBox(p: GeometryPoint, bbox: GeometryPoint): boolean;
-
     }
     declare module.exports: typeof CheapRuler;
 }