Best practices:

- gpg passphrase should not come from file (use agent or env var)
- drop nexus-staging-plugin (and better do last release steps manually via UI)

Author: cstamas

pom.xml

@@ -483,7 +483,6 @@ Bundle-DocURL: http://www.eclipse.org/sisu/
           <artifactId>maven-gpg-plugin</artifactId>
           <version>3.2.4</version>
           <configuration>
-            <passphrase>${gpg.passphrase}</passphrase>
             <useAgent>true</useAgent>
           </configuration>
           <executions>
@@ -496,16 +495,6 @@ Bundle-DocURL: http://www.eclipse.org/sisu/
             </execution>
           </executions>
         </plugin>
-        <plugin>
-          <groupId>org.sonatype.plugins</groupId>
-          <artifactId>nexus-staging-maven-plugin</artifactId>
-          <version>1.6.13</version>
-          <extensions>true</extensions>
-          <configuration>
-            <nexusUrl>https://oss.sonatype.org/</nexusUrl>
-            <serverId>sonatype-nexus-staging</serverId>
-          </configuration>
-        </plugin>
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-project-info-reports-plugin</artifactId>
@@ -596,11 +585,6 @@ Bundle-DocURL: http://www.eclipse.org/sisu/
             <groupId>org.apache.maven.plugins</groupId>
             <artifactId>maven-gpg-plugin</artifactId>
           </plugin>
-          <plugin>
-            <groupId>org.sonatype.plugins</groupId>
-            <artifactId>nexus-staging-maven-plugin</artifactId>
-            <extensions>true</extensions>
-          </plugin>
         </plugins>
       </build>
     </profile>