It's in the client.
Open client.java client-sided and find:
You should see something likeCode:if (inputString.equals("::noclip")) {
Simply delete or comment it out.Code:if (inputString.equals("::noclip")) { try { for (int k1 = 0; k1 < 4; k1++) { for (int i2 = 1; i2 < 103; i2++) { for (int k2 = 1; k2 < 103; k2++) aClass11Array1230[k1].anIntArrayArray294[i2][k2] = 0; } } } catch (Exception e) { } }