DEV: Do not translate font names (#10723)

Use the names as provided by discourse-fonts and remove the
translated strings.

It also ensures that the selected font is present in case a font will
be removed in the future.

config/locales/client.en.yml

@@ -1737,30 +1737,6 @@ en:
       categories_boxes: "Boxes with Subcategories"
       categories_boxes_with_topics: "Boxes with Featured Topics"
 
-    base_font_setting:
-      helvetica: "Helvetica/Arial"
-      open_sans: "Open Sans"
-      oxanium: "Oxanium"
-      roboto: "Roboto"
-      lato: "Lato"
-      noto_sans_jp: "NotoSansJP"
-      montserrat: "Montserrat"
-      roboto_condensed: "RobotoCondensed"
-      source_sans_pro: "SourceSansPro"
-      oswald: "Oswald"
-      raleway: "Raleway"
-      roboto_mono: "RobotoMono"
-      poppins: "Poppins"
-      noto_sans: "NotoSans"
-      roboto_slab: "RobotoSlab"
-      merriweather: "Merriweather"
-      ubuntu: "Ubuntu"
-      pt_sans: "PTSans"
-      playfair_display: "PlayfairDisplay"
-      nunito: "Nunito"
-      lora: "Lora"
-      mukta: "Mukta"
-
     shortcut_modifier_key:
       shift: "Shift"
       ctrl: "Ctrl"