diff --git a/api/pom.xml b/api/pom.xml
index ab11d4e27e5e..bb8870deb0f0 100644
--- a/api/pom.xml
+++ b/api/pom.xml
@@ -275,15 +275,6 @@
                </excludes>
             </configuration>
          </plugin>
-         <plugin>
-            <groupId>org.codehaus.mojo</groupId>
-            <artifactId>antlr-maven-plugin</artifactId>
-            <version>2.1</version>
-            <configuration>
-               <outputDirectory>src/main/java</outputDirectory>
-               <grammars>ArdenRecognizer.g</grammars>
-            </configuration>
-         </plugin>
          <plugin>
             <groupId>com.googlecode.maven-java-formatter-plugin</groupId>
             <artifactId>maven-java-formatter-plugin</artifactId>
diff --git a/checkstyle-suppressions.xml b/checkstyle-suppressions.xml
index eab113ed87a9..2f3df73d6403 100644
--- a/checkstyle-suppressions.xml
+++ b/checkstyle-suppressions.xml
@@ -17,73 +17,7 @@
 
 <suppressions>
 
-	<!--
-		Allow arden grammar-generated classes to use unconvential parameter
-		names
-	-->
-	<suppress checks="ParameterName" files="ArdenBaseLexer.java" />
-	<suppress checks="ParameterName" files="ArdenBaseTreeParser.java" />
-
-	<!-- Exception for arden compiled rules still in the repository -->
-	<suppress checks=".*" files=".*/arden/compiled/.*" />
-
-	<!--
-		Exception for arden auto-generated classes that don't yet include
-		MPL 2.0 HD header
-	-->
-	<suppress checks="Header" files="ArdenBaseLexer.java" />
-	<suppress checks="Header" files="ArdenBaseParser.java" />
-	<suppress checks="Header" files="ArdenBaseParserTokenTypes.java" />
-	<suppress checks="Header" files="ArdenBaseTreeParser.java" />
-	<suppress checks="Header" files="ArdenBaseTreeParserTokenTypes.java" />
-
-	<!-- Exceptions for line length longer than 125 -->
-	<suppress checks="FileLength" files="ArdenBaseParser.java" />
-	<suppress checks="FileLength" files="ArdenBaseTreeParser.java" />
-
-	<!-- Exceptions for use of ex.printStackTrace() -->
-	<suppress id="IllegalPrintStackTrace" files="MLMObject.java" />
-
-	<!-- Exceptions for line length longer than 125 -->
-	<suppress checks="LineLength" files="ArdenBaseLexer.java" />
-	<suppress checks="LineLength" files="ArdenBaseParser.java" />
-	<suppress checks="LineLength" files="ArdenBaseTreeParser.java" />
-	<suppress checks="LineLength" files="ArdenServiceImpl.java" />
-	
-	<!-- Exceptions for method length conventions -->
-	<suppress checks="MethodLength" files="ArdenBaseParser.java" />
-	<suppress checks="MethodLength" files="ArdenBaseTreeParser.java" />
-	<suppress checks="MethodLength" files="ArdenServiceImpl.java" />
-
-	<!-- Exceptions for method naming conventions -->
-	<suppress checks="MethodName" files="ArdenBaseLexer.java" />
-	<suppress checks="MethodName" files="ArdenBaseParser.java" />
-	<suppress checks="MethodName" files="ArdenBaseTreeParser.java" />
-	<suppress checks="MethodName" files="ArdenClause.java" />
-	<suppress checks="MethodName" files="ArdenValue.java" />
 	<!-- Test classes are allowed to have underscores in method names -->
 	<suppress checks="MethodName" files="\*Test.java" />
 
-	<!--
-		Exceptions for throwing Throwable, Exception, or RuntimeException
-	-->
-	<suppress checks="IllegalThrows" files="ArdenServiceImpl.java" />
-	<suppress checks="IllegalThrows" files="MLMObject.java" />
-
-	<!-- Exception for classes without class-level Javadoc comment -->
-	<suppress checks="JavadocType" files="ArdenBaseParser.java" />
-	<suppress checks="JavadocType" files="ArdenBaseParserTokenTypes.java" />
-	<suppress checks="JavadocType" files="ArdenBaseTreeParserTokenTypes.java" />
-	<suppress checks="JavadocType" files="ArdenClause.java" />
-	<suppress checks="JavadocType" files="ArdenDataSource.java" />
-	<suppress checks="JavadocType" files="ArdenRule.java" />
-	<suppress checks="JavadocType" files="ArdenService.java" />
-	<suppress checks="JavadocType" files="ArdenValue.java" />
-
-	<!-- Exceptions for left curly brace convention -->
-	<suppress checks="LeftCurly" files="ArdenServiceImpl.java" />
-
-	<!-- Exceptions for operator wrapping -->
-	<suppress checks="OperatorWrap" files="ArdenServiceImpl.java" />
-
-</suppressions>
\ No newline at end of file
+</suppressions>