metal : remove transfer rate stuff

Author: ggerganov

ggml/src/ggml-metal.m

@@ -497,13 +497,6 @@ @implementation GGMLMetalClass
     if (@available(macOS 10.12, iOS 16.0, *)) {
         GGML_LOG_INFO("%s: recommendedMaxWorkingSetSize  = %8.2f MB\n", __func__, device.recommendedMaxWorkingSetSize / 1e6);
     }
-    if (@available(macOS 10.15, *)) {
-        if (device.maxTransferRate != 0) {
-            GGML_LOG_INFO("%s: maxTransferRate               = %8.2f MB/s\n", __func__, device.maxTransferRate / 1e6);
-        } else {
-            GGML_LOG_INFO("%s: maxTransferRate               = built-in GPU\n", __func__);
-        }
-    }
 #endif
 
     // load kernels