remove obsolete PythonOptions.isWithThread

Author: timfel

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/PythonLanguage.java

@@ -193,7 +193,7 @@ protected boolean patchContext(PythonContext context, Env newEnv) {
 
     @Override
     protected PythonContext createContext(Env env) {
-        assert this.isWithThread == null || this.isWithThread == PythonOptions.isWithThread() : "conflicting thread options in the same language!";
+        assert this.isWithThread == null || this.isWithThread == PythonOptions.isWithThread(env) : "conflicting thread options in the same language!";
         this.isWithThread = PythonOptions.isWithThread(env);
         ensureHomeInOptions(env);
         Python3Core newCore = new Python3Core(new PythonParserImpl());

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

@@ -67,7 +67,7 @@ public class SysConfigModuleBuiltins extends PythonBuiltins {
     @Override
     public void initialize(PythonCore core) {
         super.initialize(core);
-        STATIC_CONFIG_OPTIONS.put("WITH_THREAD", PythonOptions.isWithThread() ? 1 : 0);
+        STATIC_CONFIG_OPTIONS.put("WITH_THREAD", PythonOptions.isWithThread(core.getContext().getEnv()) ? 1 : 0);
     }
 
     @Override

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

@@ -204,10 +204,6 @@ public static int getMinLazyStringLength() {
         return getOption(PythonLanguage.getContextRef().get(), MinLazyStringLength);
     }
 
-    public static boolean isWithThread() {
-        return getOption(PythonLanguage.getContextRef().get(), WithThread);
-    }
-
     public static boolean isWithThread(Env env) {
         return getOption(env, WithThread);
     }