Remove redundant modifiers from interfaces (#14843)

Signed-off-by: Wouter Born <github@maindrain.net>

bundles/org.openhab.binding.regoheatpump/src/main/java/org/openhab/binding/regoheatpump/internal/protocol/RegoConnection.java

@@ -29,27 +29,27 @@ public interface RegoConnection {
      * Connect to the receiver. Return true if the connection has succeeded or if already connected.
      *
      **/
-    public void connect() throws IOException;
+    void connect() throws IOException;
 
     /**
      * Return true if this manager is connected to the AVR.
      *
      * @return
      */
-    public boolean isConnected();
+    boolean isConnected();
 
     /**
      * Closes the connection.
      **/
-    public void close();
+    void close();
 
     /**
      * Returns an output stream for this connection.
      */
-    public OutputStream outputStream() throws IOException;
+    OutputStream outputStream() throws IOException;
 
     /**
      * Returns an input stream for this connection.
      */
-    public InputStream inputStream() throws IOException;
+    InputStream inputStream() throws IOException;
 }

bundles/org.openhab.binding.regoheatpump/src/main/java/org/openhab/binding/regoheatpump/internal/rego6xx/ResponseParser.java

@@ -21,7 +21,7 @@ import org.eclipse.jdt.annotation.NonNullByDefault;
  */
 @NonNullByDefault
 public interface ResponseParser<T> {
-    public int responseLength();
+    int responseLength();
 
-    public T parse(byte[] buffer) throws Rego6xxProtocolException;
+    T parse(byte[] buffer) throws Rego6xxProtocolException;
 }