Remove more Gradle metadata.

Author: khatchad

.project

@@ -15,15 +15,9 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
-		<buildCommand>
-			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.m2e.core.maven2Nature</nature>
 		<nature>org.python.pydev.pythonNature</nature>
-		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>
 	</natures>
 </projectDescription>

com.ibm.wala.cast.python.jython.test/.project

@@ -10,11 +10,6 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
-		<buildCommand>
-			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
 		<buildCommand>
 			<name>org.python.pydev.PyDevBuilder</name>
 			<arguments>
@@ -41,6 +36,5 @@
 		<nature>org.eclipse.pde.PluginNature</nature>
 		<nature>org.eclipse.jdt.core.javanature</nature>
 		<nature>org.python.pydev.pythonNature</nature>
-		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>
 	</natures>
 </projectDescription>