Revert "wsl: Get the distro icon from the package family name"

This reverts commit 1e6c2cba76.

tabby-core/src/components/profileIcon.component.pug

@@ -1,11 +1,7 @@
-.icon(
-    [fastHtmlBind]='pngPath',
-    *ngIf='!isHTML && isPNG'
-)
 i.icon(
     class='fa-fw {{icon}}',
     [style.color]='color',
-    *ngIf='!isHTML && !isPNG'
+    *ngIf='!isHTML'
 )
 .icon(
     [fastHtmlBind]='icon',

tabby-core/src/components/profileIcon.component.ts

@@ -12,15 +12,7 @@ export class ProfileIconComponent extends BaseComponent {
     @Input() icon?: string
     @Input() color?: string
 
-    get pngPath (): string {
-        return `<img src="${this.icon?.trim()}" width="16" height="16" />`
-    }
-
     get isHTML (): boolean {
         return this.icon?.startsWith('<') ?? false
     }
-
-    get isPNG (): boolean {
-        return this.icon?.endsWith('.png') ?? false
-    }
 }