Remove getConnection().

dcc/src/com/dmdirc/addons/dcc/DCCFrameContainer.java

         return 512;
     }
 
-    @Override
-    @Deprecated
-    public Connection getConnection() { //NOPMD - server will always be null
-        return null;
-    }
-
     @Override
     public Optional<Connection> getOptionalConnection() {
         return Optional.empty();

dcc/src/com/dmdirc/addons/dcc/PlaceholderContainer.java

         }
     }
 
-    @Override
-    @Deprecated
-    public Connection getConnection() {
-        return null;
-    }
-
     @Override
     public Optional<Connection> getOptionalConnection() {
         return Optional.empty();

dcc/src/com/dmdirc/addons/dcc/TransferContainer.java

         }
     }
 
-    @Override
-    @Deprecated
-    public Connection getConnection() {
-        return null;
-    }
-
     @Override
     public Optional<Connection> getOptionalConnection() {
         return Optional.empty();

logging/src/com/dmdirc/addons/logging/HistoryWindow.java

 
     }
 
-    @Override
-    @Deprecated
-    public Connection getConnection() {
-        return getParent().map(FrameContainer::getConnection).orElse(null);
-    }
-
     @Override
     public Optional<Connection> getOptionalConnection() {
         return getParent().flatMap(FrameContainer::getOptionalConnection);

parserdebug/src/com/dmdirc/addons/parserdebug/DebugWindow.java

         this.connection = connection;
     }
 
-    /**
-     * Returns the server instance associated with this container.
-     *
-     * @return the associated server connection
-     */
-    @Override
-    @Deprecated
-    public Connection getConnection() {
-        return connection;
-    }
-
     @Override
     public Optional<Connection> getOptionalConnection() {
         return Optional.of(connection);

redirect/src/com/dmdirc/addons/redirect/FakeWriteableFrameContainer.java

         return target.getMaxLineLength();
     }
 
-    @Override
-    @Deprecated
-    public Connection getConnection() {
-        return target.getConnection();
-    }
-
     @Override
     public Optional<Connection> getOptionalConnection() {
         return target.getOptionalConnection();