Removing unused parameter.

Author: ppisl

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/MultiprocessingModuleBuiltins.java

@@ -186,7 +186,7 @@ long spawn(VirtualFrame frame, int fd, int sentinel, PList keepFds,
                 keep[i] = castToJavaIntNode.execute(item);
             }
             PythonContext context = getContext();
-            long tid = context.spawnTruffleContext(context, fd, sentinel, keep);
+            long tid = context.spawnTruffleContext(fd, sentinel, keep);
             return convertTid(tid);
         }
     }

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/PythonContext.java

@@ -778,7 +778,7 @@ public SharedMultiprocessingData getSharedMultiprocessingData() {
         return sharedMultiprocessingData;
     }
 
-    public long spawnTruffleContext(PythonContext context, int fd, int sentinel, int[] fdsToKeep) {
+    public long spawnTruffleContext(int fd, int sentinel, int[] fdsToKeep) {
         ChildContextData data = new ChildContextData();
         if (!isChildContext()) {
             data.setParentContext(this);