[model] don't require to download antlr generator on build time (#810)

The antlr generator has been downloaded by a specific download maven
plugin at build time.
Instead of calling the plugin goals it would be much simpler to add the
downloaded file to the repository (I assume it has been not possible on
the Eclipse repository before).
Another benefit would be the IDE integration as the IDE does not need to
know if the plugin needs to be executed or not...

The provided antlr generator has been taken from:
http://download.itemis.com/antlr-generator-3.2.0-patch.jar

Signed-off-by: Markus Rathgeb <maggu2810@gmail.com>

.gitignore

@@ -11,7 +11,6 @@ bin/
 **/.settings/org.eclipse.*
 
 dependency-reduced-pom.xml
-bundles/antlr-generator-3.2.0-patch.jar
 bundles/org.openhab.core.model.*/META-INF/
 features/karaf/*/src/main/history
 

bundles/pom.xml

@@ -238,38 +238,6 @@
         </plugins>
       </build>
     </profile>
-    <profile>
-      <id>model-antlr-profile</id>
-      <activation>
-        <file>
-          <exists>org.openhab.core.model.codegen/model.profile-marker</exists>
-        </file>
-      </activation>
-      <build>
-        <plugins>
-          <plugin>
-            <groupId>com.googlecode.maven-download-plugin</groupId>
-            <artifactId>download-maven-plugin</artifactId>
-            <version>1.2.1</version>
-            <inherited>false</inherited>
-            <executions>
-              <execution>
-                <id>install-antrl3</id>
-                <goals>
-                  <goal>wget</goal>
-                </goals>
-                <phase>initialize</phase>
-                <configuration>
-                  <url>http://download.itemis.com/antlr-generator-3.2.0-patch.jar</url>
-                  <unpack>false</unpack>
-                  <outputDirectory>/${basedir}</outputDirectory>
-                </configuration>
-              </execution>
-            </executions>
-          </plugin>
-        </plugins>
-      </build>
-    </profile>
   </profiles>
 
 </project>