remove unnecessary .orEmpty() on non-null fields

app/src/main/java/com/keylesspalace/tusky/components/conversation/ConversationEntity.kt

@@ -148,7 +148,7 @@ fun TimelineAccount.toEntity() = ConversationAccountEntity(
     username = username,
     displayName = name,
     avatar = avatar,
-    emojis = emojis.orEmpty()
+    emojis = emojis
 )
 
 fun Status.toEntity(expanded: Boolean, contentShowing: Boolean, contentCollapsed: Boolean) =

app/src/main/java/com/keylesspalace/tusky/db/AccountManager.kt

@@ -155,7 +155,7 @@ class AccountManager @Inject constructor(db: AppDatabase) {
             it.defaultPostPrivacy = account.source?.privacy ?: Status.Visibility.PUBLIC
             it.defaultPostLanguage = account.source?.language.orEmpty()
             it.defaultMediaSensitivity = account.source?.sensitive ?: false
-            it.emojis = account.emojis.orEmpty()
+            it.emojis = account.emojis
             it.locked = account.locked
 
             Log.d(TAG, "updateActiveAccount: saving account with id " + it.id)