Make max envelope size remote configurable.

app/src/main/java/org/thoughtcrime/securesms/dependencies/ApplicationDependencyProvider.java

@@ -174,10 +174,9 @@ public class ApplicationDependencyProvider implements AppDependencies.Provider {
                                             keysApi,
                                             Optional.of(new SecurityEventListener(context)),
                                             SignalExecutors.newCachedBoundedExecutor("signal-messages", ThreadUtil.PRIORITY_IMPORTANT_BACKGROUND_THREAD, 1, 16, 30),
-                                            ByteUnit.KILOBYTES.toBytes(256),
+                                            RemoteConfig.maxEnvelopeSizeBytes(),
                                             RemoteConfig::useMessageSendRestFallback,
-                                            RemoteConfig.usePqRatchet(),
-                                            RemoteConfig.internalUser() ? Optional.of(ByteUnit.KILOBYTES.toBytes(96)) : Optional.empty());
+                                            RemoteConfig.usePqRatchet());
   }
 
   @Override

app/src/main/java/org/thoughtcrime/securesms/util/RemoteConfig.kt

@@ -875,7 +875,7 @@ object RemoteConfig {
   @JvmStatic
   @get:JvmName("promptForDelayedNotificationLogs")
   val promptForDelayedNotificationLogs: String by remoteString(
-    key = RemoteConfig.PROMPT_FOR_NOTIFICATION_LOGS,
+    key = PROMPT_FOR_NOTIFICATION_LOGS,
     defaultValue = "*",
     hotSwappable = true
   )
@@ -1177,5 +1177,14 @@ object RemoteConfig {
     if (value.asBoolean(false)) UsePqRatchet.YES else UsePqRatchet.NO
   }
 
+  /** The maximum allowed envelope size for messages we send. */
+  @JvmStatic
+  @get:JvmName("maxEnvelopeSizeBytes")
+  val maxEnvelopeSizeBytes: Long by remoteLong(
+    key = "android.maxEnvelopeSizeBytes",
+    defaultValue = 256.kibiBytes.inWholeBytes,
+    hotSwappable = true
+  )
+
   // endregion
 }