Remove renderer as in the upstream and we provide no value overriding it

Author: hazendaz

src/main/groovy/org/codehaus/mojo/spotbugs/SpotBugsMojo.groovy

@@ -31,7 +31,6 @@ import java.util.stream.Collectors
 
 import javax.inject.Inject
 
-import org.apache.maven.doxia.siterenderer.Renderer
 import org.apache.maven.execution.MavenSession
 import org.apache.maven.plugin.MojoExecutionException
 import org.apache.maven.plugins.annotations.Mojo
@@ -136,10 +135,6 @@ class SpotBugsMojo extends AbstractMavenReport implements SpotBugsPluginsTrait {
     @Parameter(defaultValue = 'spotbugsXml.xml', property = 'spotbugs.outputXmlFilename')
     String spotbugsXmlOutputFilename
 
-    /** Doxia Site Renderer. */
-    @Inject
-    Renderer siteRenderer
-
     /** Directory containing the class files for Spotbugs to analyze. */
     @Parameter(defaultValue = '${project.build.outputDirectory}', required = true)
     File classFilesDirectory
@@ -710,15 +705,6 @@ class SpotBugsMojo extends AbstractMavenReport implements SpotBugsPluginsTrait {
         return outputDirectory.getAbsolutePath()
     }
 
-    /**
-     * Return the Site Renderer.
-     *
-     */
-    @Override
-    protected Renderer getSiteRenderer() {
-        return this.siteRenderer
-    }
-
     /**
      * Determines if the JXR-Plugin is included in the report section of the POM.
      *