build: remove flowing-releases repository

Author: javier-godoy

pom.xml

@@ -75,10 +75,6 @@
             <id>Vaadin Directory</id>
             <url>https://maven.vaadin.com/vaadin-addons</url>
         </repository>
-        <repository>
-			<id>FlowingCode Releases</id>
-			<url>https://maven.flowingcode.com/releases</url>
-		</repository>
 		<repository>
 			<id>FlowingCode Snapshots</id>
 			<url>https://maven.flowingcode.com/snapshots</url>