Fix: don't fail on non-alloc'd handle in universal

Author: fangerer

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/hpy/GraalHPyHandle.java

@@ -121,9 +121,6 @@ public int getIdDebug(GraalHPyContext context) {
     }
 
     int getDebugId() {
-        if (id == UNINITIALIZED) {
-            throw CompilerDirectives.shouldNotReachHere();
-        }
         if (id >= 0) {
             return id;
         }

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/hpy/GraalHPyNodes.java

@@ -1282,7 +1282,6 @@ static Object doHandle(@SuppressWarnings("unused") GraalHPyContext hpyContext, G
         static Object doValidHandle(GraalHPyContext hpyContext, GraalHPyHandle handle) {
             if (!handle.isValid()) {
                 hpyContext.onInvalidHandle(handle.getDebugId());
-                return PNone.NO_VALUE;
             }
             return handle.getDelegate();
         }