Merge pull request #443 from square/jw/what-were-you-thinking-george-lucas

Remove unused jarjar plugin declaration.

pom.xml

@@ -165,12 +165,6 @@
   <build>
     <pluginManagement>
       <plugins>
-        <plugin>
-          <groupId>org.sonatype.plugins</groupId>
-          <artifactId>jarjar-maven-plugin</artifactId>
-          <version>1.7</version>
-        </plugin>
-
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-compiler-plugin</artifactId>