Respond to CR.

// FREEBIE

Signal/src/UIColor+OWS.h

@@ -19,6 +19,5 @@
 + (UIColor *)ows_infoMessageBorderColor;
 + (UIColor *)backgroundColorForContact:(NSString *)contactIdentifier;
 + (UIColor *)colorWithRGBHex:(unsigned long)value;
-+ (UIColor *)colorWithARGBHex:(unsigned long)value;
 
 @end

Signal/src/UIColor+OWS.m

@@ -115,13 +115,4 @@
     return [UIColor colorWithRed:red green:green blue:blue alpha:1.f];
 }
 
-+ (UIColor *)colorWithARGBHex:(unsigned long)value
-{
-    CGFloat alpha = ((value >> 24) & 0xff) / 255.f;
-    CGFloat red = ((value >> 16) & 0xff) / 255.f;
-    CGFloat green = ((value >> 8) & 0xff) / 255.f;
-    CGFloat blue = ((value >> 0) & 0xff) / 255.f;
-    return [UIColor colorWithRed:red green:green blue:blue alpha:alpha];
-}
-
 @end