macosx: Remove now unused VLCLibraryProgressIndicatorForegroundColor

Signed-off-by: Claudio Cambra <developer@claudiocambra.com>

modules/gui/macosx/extensions/NSColor+VLCAdditions.h

@@ -36,7 +36,6 @@ NS_ASSUME_NONNULL_BEGIN
 + (instancetype)VLClibrarySeparatorLightColor;
 + (instancetype)VLClibrarySeparatorDarkColor;
 + (instancetype)VLClibraryProgressIndicatorBackgroundColor;
-+ (instancetype)VLClibraryProgressIndicatorForegroundColor;
 + (instancetype)VLClibraryItemBorderLightColor;
 + (instancetype)VLClibraryItemBorderDarkColor;
 + (instancetype)VLClibraryCollectionViewItemBackgroundLightColor;

modules/gui/macosx/extensions/NSColor+VLCAdditions.m

@@ -78,11 +78,6 @@
     return [NSColor colorWithRed:37./255. green:41./255. blue:44./255. alpha:.8];
 }
 
-+ (instancetype)VLClibraryProgressIndicatorForegroundColor
-{
-    return [NSColor colorWithRed:246./255. green:127./255. blue:0. alpha:1.];
-}
-
 + (instancetype)VLClibraryItemBorderLightColor
 {
     return [NSColor colorWithRed:0.89 green:0.89 blue:0.91 alpha:1.];