finish basic Text features on iOS

ios/Text/RNSVGText.m

@@ -17,13 +17,6 @@
     [self invalidate];
     _alignment = alignment;
 }
-//
-//- (void)setTextFrame:(RNSVGTextFrame)textFrame
-//{
-//    RNSVGFreeTextFrame(_textFrame);
-//    [self invalidate];
-//    _textFrame = textFrame;
-//}
 
 - (void)setPath:(NSArray *)path
 {
@@ -34,15 +27,10 @@
     _path = path;
 }
 
-//- (void)dealloc
-//{
-//    RNSVGFreeTextFrame(_textFrame);
-//}
-
 - (void)renderLayerTo:(CGContextRef)context
 {
     CGFloat shift = [self getShift:context path:nil];
-    // translate path by alignment offset
+    // Translate path by alignment offset
     CGContextSaveGState(context);
     CGContextConcatCTM(context, CGAffineTransformMakeTranslation(-shift, 0));
     [super renderLayerTo:context];
@@ -86,33 +74,4 @@
     return shift;
 }
 
-//- (CGPathRef)getPath:(CGContextRef)context
-//{
-//    CGMutablePathRef path = CGPathCreateMutable();
-//    RNSVGTextFrame frame = self.textFrame;
-//    for (int i = 0; i < frame.count; i++) {
-//        CGFloat shift;
-//        CGFloat width = frame.widths[i];
-//        switch (self.alignment) {
-//            case kCTTextAlignmentRight:
-//                shift = width;
-//                break;
-//            case kCTTextAlignmentCenter:
-//                shift = width / 2;
-//                break;
-//            default:
-//                shift = 0;
-//                break;
-//        }
-//        // We should consider snapping this shift to device pixels to improve rendering quality
-//        // when a line has subpixel width.
-//        CGAffineTransform offset = CGAffineTransformMakeTranslation(-shift, frame.baseLine + frame.lineHeight * i + (self.path ? -frame.lineHeight : 0));
-//        
-//        CGMutablePathRef line = [self setLinePath:frame.lines[i]];
-//        CGPathAddPath(path, &offset, line);
-//        CGPathRelease(line);
-//    }
-    
-//    return (CGPathRef)CFAutorelease(path);
-//}
 @end