Revert "Population visualization (#842)" (#908)

## Description:
This reverts commit 7a78e0c5a2.

Revert it for v23, until we have a proper place to put the visualization

## Please complete the following:

- [x] I have added screenshots for all UI updates
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced
- [x] I understand that submitting code with bugs that could have been
caught through manual testing blocks releases and new features for all
contributors

## Please put your Discord username so you can be contacted if a bug or
regression is found:

<DISCORD USERNAME>

src/client/graphics/layers/SpawnTimer.ts

@@ -25,21 +25,6 @@ export class SpawnTimer implements Layer {
     this.colors = [];
 
     if (this.game.config().gameConfig().gameMode !== GameMode.Team) {
-      const player = this.game.myPlayer();
-      if (player === null) return;
-      const max = this.game.config().maxPopulation(player);
-      const troops = player.troops();
-      const workers = player.workers();
-      const total = player.totalPopulation();
-      const attacking = total - troops - workers;
-
-      this.colors = [
-        "rgba(0, 128, 255, 0.7)",
-        "orange",
-        "red",
-        "rgba(0, 0, 0, 0.5)",
-      ];
-      this.ratios = [workers / max, troops / max, attacking / max];
       return;
     }