clean useless identifier

Session/Conversations/Emoji Picker/EmojiPickerCollectionView.swift

@@ -56,13 +56,9 @@ class EmojiPickerCollectionView: UICollectionView {
 
         delegate = self
         dataSource = self
-
-        register(EmojiCell.self, forCellWithReuseIdentifier: EmojiCell.reuseIdentifier)
-        register(
-            EmojiSectionHeader.self,
-            forSupplementaryViewOfKind: UICollectionView.elementKindSectionHeader,
-            withReuseIdentifier: EmojiSectionHeader.reuseIdentifier
-        )
+        
+        register(view: EmojiCell.self)
+        register(view: EmojiSectionHeader.self, ofKind: UICollectionView.elementKindSectionHeader)
 
         themeBackgroundColor = .clear
 
@@ -245,35 +241,20 @@ extension EmojiPickerCollectionView: UICollectionViewDataSource {
     }
 
     func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
-        let cell = dequeueReusableCell(withReuseIdentifier: EmojiCell.reuseIdentifier, for: indexPath)
-
-        guard let emojiCell = cell as? EmojiCell else {
-            Log.error("[EmojiPickerCollectionView] unexpected cell type")
-            return cell
-        }
+        let cell = dequeue(type: EmojiCell.self, for: indexPath)
 
         guard let emoji = emojiForIndexPath(indexPath) else {
             Log.error("[EmojiPickerCollectionView] unexpected indexPath")
             return cell
         }
 
-        emojiCell.configure(emoji: emoji)
+        cell.configure(emoji: emoji)
 
         return cell
     }
 
     func collectionView(_ collectionView: UICollectionView, viewForSupplementaryElementOfKind kind: String, at indexPath: IndexPath) -> UICollectionReusableView {
-
-        let supplementaryView = dequeueReusableSupplementaryView(
-            ofKind: kind,
-            withReuseIdentifier: EmojiSectionHeader.reuseIdentifier,
-            for: indexPath
-        )
-
-        guard let sectionHeader = supplementaryView as? EmojiSectionHeader else {
-            Log.error("[EmojiPickerCollectionView] unexpected supplementary view type")
-            return supplementaryView
-        }
+        let sectionHeader = dequeue(type:  EmojiSectionHeader.self, ofKind: kind, for: indexPath)
 
         sectionHeader.label.text = nameForSection(indexPath.section)
 
@@ -296,8 +277,6 @@ extension EmojiPickerCollectionView: UICollectionViewDelegateFlowLayout {
 }
 
 private class EmojiCell: UICollectionViewCell {
-    static let reuseIdentifier = "EmojiCell" // stringlint:disable
-
     let emojiLabel = UILabel()
 
     override init(frame: CGRect) {
@@ -326,8 +305,6 @@ private class EmojiCell: UICollectionViewCell {
 }
 
 private class EmojiSectionHeader: UICollectionReusableView {
-    static let reuseIdentifier = "EmojiSectionHeader" // stringlint:disable
-
     let label = UILabel()
 
     override init(frame: CGRect) {

Session/Home/Message Requests/Views/MessageRequestsCell.swift

@@ -5,8 +5,6 @@ import SessionUIKit
 import SignalUtilitiesKit
 
 class MessageRequestsCell: UITableViewCell {
-    static let reuseIdentifier = "MessageRequestsCell" // stringlint:disable
-    
     // MARK: - Initialization
     
     override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {

Session/Media Viewing & Editing/MediaTileViewController.swift

@@ -752,9 +752,6 @@ private class MediaTileViewLayout: UICollectionViewFlowLayout {
 }
 
 private class MediaGallerySectionHeader: UICollectionReusableView {
-
-    static let reuseIdentifier = "MediaGallerySectionHeader" // stringlint:disable
-
     // HACK: scrollbar incorrectly appears *behind* section headers
     // in collection view on iOS11 =(
     private class AlwaysOnTopLayer: CALayer {
@@ -810,9 +807,6 @@ private class MediaGallerySectionHeader: UICollectionReusableView {
 }
 
 private class MediaGalleryStaticHeader: UICollectionViewCell {
-
-    static let reuseIdentifier = "MediaGalleryStaticHeader" // stringlint:disable
-
     let label = UILabel()
 
     override init(frame: CGRect) {