Revert "[cherry-pick] This PR enable offset of generator for custom device. (PaddlePaddle#60616) (PaddlePaddle#60772)"

This reverts commit 0f732a5.

Author: hanhaowen-mt

paddle/phi/core/generator.cc

@@ -278,8 +278,7 @@ uint64_t Generator::Random64() {
 
 std::pair<uint64_t, uint64_t> Generator::IncrementOffset(
     uint64_t increment_offset) {
-#if defined(PADDLE_WITH_CUDA) || defined(PADDLE_WITH_HIP) || \
-    defined(PADDLE_WITH_CUSTOM_DEVICE)
+#if defined(PADDLE_WITH_CUDA) || defined(PADDLE_WITH_HIP)
   std::lock_guard<std::mutex> lock(this->mu_);
   uint64_t cur_offset = this->state_.thread_offset;
   VLOG(10) << "cur_offset = " << cur_offset