Dropping documentation part because of apache#169

Author: nielsbasjes

maven-release-plugin/src/site/apt/usage.apt.vm

@@ -152,42 +152,3 @@ mvn -Dusername=your_scm_username release:prepare
   ...
 </project>
 +-------------------
-
-* Automatically calculating the released version
-
-  The Release Plugin automatically calculates the version that is released and the next development version
-  (i.e. the next SNAPSHOT). If nothing is configured this is done by the default VersionPolicy which compares
-  and increments versions for a common java versioning scheme.
-
-  It is possible to select a different VersionPolicy by specifying its id.
-
-+-------------------
-<project>
-  ...
-  <build>
-    <plugins>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-release-plugin</artifactId>
-        <version>${project.version}</version>
-        <configuration>
-          <projectVersionPolicyId>SemVerVersionPolicy</projectVersionPolicyId>
-        </configuration>
-      </plugin>
-    </plugins>
-    ...
-  </build>
-  ...
-</project>
-+-------------------
-
-  There are 3 VersionPolicies bundled with the Release Plugin:
-
-  * default: \
-    This compares and increments versions for a common java versioning scheme.
-
-  * OddEvenVersionPolicy: \
-    A version policy that proposes even version numbers only for releases and odd numbers for development.
-
-  * SemVerVersionPolicy: \
-    A version policy that enforce SemVer format and upgrades minor element for next development version.