HBASE-23337 Release scripts should rely on maven for deploy. (#887)

- switch to nexus-staging-maven-plugin for asf-release
- cleaned up some tabs in the root pom

(differs from master because there are no release scripts here.)

Signed-off-by: stack <stack@apache.org>
(cherry picked from commit 97e0107000)

pom.xml

@@ -2157,6 +2157,28 @@
         <argLine>${hbase-surefire.cygwin-argLine}</argLine>
       </properties>
     </profile>
+    <!-- this profile should match the name of the release profile in the root asf pom -->
+    <profile>
+      <id>apache-release</id>
+      <build>
+        <plugins>
+          <!-- This should insert itself in place of the normal deploy plugin and then
+               handle either closing or dropping the staging repository for us depending
+               on if the build succeeds.
+            -->
+          <plugin>
+            <groupId>org.sonatype.plugins</groupId>
+            <artifactId>nexus-staging-maven-plugin</artifactId>
+            <version>1.6.8</version>
+            <extensions>true</extensions>
+            <configuration>
+              <nexusUrl>https://repository.apache.org/</nexusUrl>
+              <serverId>apache.releases.https</serverId>
+            </configuration>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
     <!-- this profile should be activated for release builds -->
     <profile>
       <id>release</id>