Revert "Initial windows support (untested)"

This reverts commit a017390358.

llama.cpp

@@ -12,15 +12,11 @@
 #include <cassert>
 #include <cstring>
 
-// mmap
+// headers for POSIX mmap
 #if defined (__unix__) || defined (__APPLE__)
 #   include <sys/mman.h>
 #   include <fcntl.h>
 #   include <unistd.h>
-#elif defined(_WIN32)
-#   define WIN32_LEAN_AND_MEAN
-#   include <Windows.h>
-//#include <Memoryapi.h>
 #endif
 
 #define LLAMA_USE_SCRATCH
@@ -316,31 +312,8 @@ static void mmap_file(const char* fname, void * &mm_addr, size_t &mm_length) {
         mm_addr = NULL;
         mm_length = 0;
     }
-#elif defined(_WIN32)
-    mm_addr = NULL;
-    
-    HANDLE hFile = CreateFileA(filename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
-    if (hFile == INVALID_HANDLE_VALUE) {
-        return;
-    }
-
-    // not really necessary
-    LARGE_INTEGER fileSize;
-    GetFileSizeEx(hFile, &fileSize);
-    mm_length = fileSize;
-
-    HANDLE hMapping = CreateFileMappingA(hFile, NULL, PAGE_READONLY, 0, 0, NULL);
-    CloseHandle(hFile);
-
-    if (hMapping == NULL) {
-        return;
-    }
-
-    mm_addr = MapViewOfFile(hMapping, FILE_MAP_READ, 0, 0, 0);
-    CloseHandle(hMapping);
 #else
-    mm_addr = NULL;
+    // TODO: windows support
-    mm_length = 0;
     (void)(fname); // suppress warnings
 #endif
 }
@@ -349,9 +322,8 @@ static void munmap_file(void * addr, size_t length) {
 #if defined(MAP_FAILED)
     // POSIX
     munmap(addr, length);
-#elif defined(_WIN32)
-    UnmapViewOfFile(addr);
 #else
+    // TODO: windows support
     (void)(addr); // suppress warnings
     (void)(length);
 #endif