Remove grade on linechart

@@ -179,7 +179,7 @@
         _textLayer = [[CATextLayer alloc]init];
         [_textLayer setString:@"0"];
         [_textLayer setAlignmentMode:kCAAlignmentCenter];
-        [_textLayer setForegroundColor:[[UIColor blackColor] CGColor]];
+        [_textLayer setForegroundColor:[[UIColor grayColor] CGColor]];
     }
 
     return _textLayer;

@@ -62,7 +62,7 @@
     _yChartLabelWidth    = 18;
     _rotateForXAxisText  = false;
 	
-	yLabelFormatter = ^(CGFloat yValue){
+	_yLabelFormatter = ^(CGFloat yValue){
 		return [NSString stringWithFormat:@"%1.f",yValue];
 	};
 }

@@ -1006,6 +1006,7 @@
 
 -(void)setGradeFrame:(CATextLayer*)textLayer grade:(CGFloat)grade pointCenter:(CGPoint)pointCenter width:(CGFloat)width
 {
+    return;
     CGFloat textheigt = width*3;
     CGFloat textWidth = width*4;
     CGFloat textStartPosY;