Removed version constant to avoid duplicated information

Author: Valentin BAIZEAU

remotesync-api/src/main/java/org/piwigo/remotesync/api/Constants.java

@@ -41,13 +41,6 @@ public boolean accept(File file) {
 		}
 
 	}
-	
-	/**
-	 * Added some constant to define the current version
-	 * Used to build the matching user-agent
-	 * @since v.0.0.14
-	 */
-	public static final String CLIENT_VERSION = "0.0.14";
 
 	public static final String DIRECTORY_DEFAULT = ConfigurationUtil.INSTANCE.getUserCurrentDirectory().getAbsolutePath();
 

remotesync-api/src/main/java/org/piwigo/remotesync/api/client/WSClient.java

@@ -218,7 +218,7 @@ protected CloseableHttpClient getHttpClient() throws Exception {
 			    httpClientBuilder.setSSLSocketFactory(new SSLConnectionSocketFactory(sslContextBuilder.build()));
 			}
 
-			httpClientBuilder.setUserAgent("PiwigoRemoteSync " + Constants.CLIENT_VERSION);
+			httpClientBuilder.setUserAgent("PiwigoRemoteSync " + getClass().getPackage().getImplementationVersion());
 			httpClient = httpClientBuilder.build();
 		}