Remove alternative total score display (colour gradient) for now

For simplicity and a future consideration for when the skinning portion is implemented.

osu.Game/Graphics/OsuColour.cs

@@ -3,7 +3,6 @@
 
 using System;
 using osu.Framework.Extensions.Color4Extensions;
-using osu.Framework.Graphics;
 using osu.Framework.Graphics.Colour;
 using osu.Game.Beatmaps;
 using osu.Game.Online.Rooms;
@@ -69,26 +68,6 @@ namespace osu.Game.Graphics
             }
         }
 
-        /// <summary>
-        /// Retrieves the colour for the total score depending on <see cref="ScoreRank"/>.
-        /// </summary>
-        public static ColourInfo TotalScoreColourFor(ScoreRank rank)
-        {
-            switch (rank)
-            {
-                case ScoreRank.XH:
-                case ScoreRank.X:
-                    return ColourInfo.GradientVertical(Colour4.FromHex(@"A4DEFF"), Colour4.FromHex(@"F0AADD"));
-
-                case ScoreRank.SH:
-                case ScoreRank.S:
-                    return ColourInfo.GradientVertical(Colour4.FromHex(@"FFFFFF"), Colour4.FromHex(@"F7E65D"));
-
-                default:
-                    return Colour4.White;
-            }
-        }
-
         /// <summary>
         /// Retrieves the colour for a <see cref="HitResult"/>.
         /// </summary>

osu.Game/Online/Leaderboards/LeaderboardScoreV2.cs

@@ -414,7 +414,6 @@ namespace osu.Game.Online.Leaderboards
                                         Shear = -shear,
                                         Current = scoreManager.GetBindableTotalScoreString(score),
                                         Font = OsuFont.GetFont(size: 30, weight: FontWeight.Light),
-                                        Colour = OsuColour.TotalScoreColourFor(score.Rank),
                                     },
                                     modsContainer = new FillFlowContainer<ColouredModSwitchTiny>
                                     {