[java] Remove connection timeout setter

Since the AsyncHttpClient is initialized using a static block and that uses the default client config values, any newly set value of connection timeout is never used.

Author: pujagani

java/src/org/openqa/selenium/remote/http/ClientConfig.java

@@ -93,16 +93,6 @@ public URL baseUrl() {
     }
   }
 
-  public ClientConfig connectionTimeout(Duration timeout) {
-    return new ClientConfig(
-      baseUri,
-      Require.nonNull("Connection timeout", timeout),
-      readTimeout,
-      filters,
-      proxy,
-      credentials);
-  }
-
   public Duration connectionTimeout() {
     return connectionTimeout;
   }

java/test/org/openqa/selenium/remote/RemoteWebDriverBuilderTest.java

@@ -310,7 +310,6 @@ public void shouldSetRemoteHostUriOnClientConfigIfSet() {
   @Test
   public void shouldThrowErrorIfCustomConfigIfSetForLocalDriver() {
     ClientConfig config = ClientConfig.defaultConfig()
-      .connectionTimeout(Duration.ofMinutes(5))
       .readTimeout(Duration.ofMinutes(4));
 
     RemoteWebDriverBuilder builder = RemoteWebDriver.builder()