Remove V1 code.

src/org/thoughtcrime/securesms/sms/IncomingKeyExchangeMessage.java

@@ -6,6 +6,7 @@ public class IncomingKeyExchangeMessage extends IncomingTextMessage {
   private boolean isProcessed;
   private boolean isCorrupted;
   private boolean isInvalidVersion;
+  private boolean isLegacyVersion;
 
   public IncomingKeyExchangeMessage(IncomingTextMessage base, String newBody) {
     super(base, newBody);
@@ -15,6 +16,7 @@ public class IncomingKeyExchangeMessage extends IncomingTextMessage {
       this.isProcessed      = ((IncomingKeyExchangeMessage)base).isProcessed;
       this.isCorrupted      = ((IncomingKeyExchangeMessage)base).isCorrupted;
       this.isInvalidVersion = ((IncomingKeyExchangeMessage)base).isInvalidVersion;
+      this.isLegacyVersion  = ((IncomingKeyExchangeMessage)base).isLegacyVersion;
     }
   }
 
@@ -23,6 +25,10 @@ public class IncomingKeyExchangeMessage extends IncomingTextMessage {
     return new IncomingKeyExchangeMessage(this, messageBody);
   }
 
+  public boolean isIdentityUpdate() {
+    return false;
+  }
+
   public boolean isStale() {
     return isStale;
   }
@@ -55,6 +61,14 @@ public class IncomingKeyExchangeMessage extends IncomingTextMessage {
     this.isInvalidVersion = isInvalidVersion;
   }
 
+  public boolean isLegacyVersion() {
+    return isLegacyVersion;
+  }
+
+  public void setLegacyVersion(boolean isLegacyVersion) {
+    this.isLegacyVersion = isLegacyVersion;
+  }
+
   @Override
   public boolean isKeyExchange() {
     return true;

src/org/thoughtcrime/securesms/sms/IncomingTextMessage.java

@@ -179,10 +179,6 @@ public class IncomingTextMessage implements Parcelable {
     return false;
   }
 
-  public boolean isIdentityUpdate() {
-    return false;
-  }
-
   public boolean isPush() {
     return push;
   }