remove unused formatting in home screen

Session/Utilities/MentionUtilities.swift

@@ -25,7 +25,9 @@ public enum MentionUtilities {
             theme: .classicDark,
             primaryColor: Theme.PrimaryColor.green,
             attributes: [:]
-        ).string
+        )
+        .string
+        .deformatted()
     }
 
     public static func highlightMentions(

SessionUtilitiesKit/General/Localization.swift

@@ -276,4 +276,8 @@ public extension String {
     func formatted(baseFont: UIFont) -> NSAttributedString {
         return NSAttributedString(stringWithHTMLTags: self, font: baseFont)
     }
+    
+    func deformatted() -> String {
+        return NSAttributedString(stringWithHTMLTags: self, font: .systemFont(ofSize: 14)).string
+    }
 }