Fixed WSL cuda's OOM error (#1594)

* In the function , add the cuda error bypass.

* remove excessive codes and prints

---------

Co-authored-by: liang <liangmanlai@126.com>

ggml-cuda.cu

@@ -1105,6 +1105,9 @@ void * ggml_cuda_host_malloc(size_t size) {
     void * ptr = nullptr;
     cudaError_t err = cudaMallocHost((void **) &ptr, size);
     if (err != cudaSuccess) {
+        // The allocation error can be bypassed. A null ptr will assigned out of this function.
+        // This can fixed the OOM error in WSL.
+        cudaGetLastError();
         fprintf(stderr, "WARNING: failed to allocate %.2f MB of pinned memory: %s\n",
             size/1024.0/1024.0, cudaGetErrorString(err));
         return nullptr;