Remove CopyFile, GetTempFileName from PAL (#113490)

* CopyFileW

* CopyFileA

* GetTempFileNameW

* GetTempFileNameA

* PAL_GetUserTempDirectoryW

* Cleanup orphans

* Remove copyJit

* Delete JitInstance::reLoad

Author: huoyaoyuan

src/coreclr/dlls/mscordac/mscordac_unixexports.src

@@ -61,7 +61,6 @@ nativeStringResourceTable_mscorrc
 #memcpy_s
 #sscanf_s
 
-#CopyFileW
 #CreateFileMappingW
 #CreateFileA
 #CreateFileW
@@ -101,7 +100,6 @@ nativeStringResourceTable_mscorrc
 #GetSystemInfo
 #GetSystemTime
 #GetSystemTimeAsFileTime
-#GetTempFileNameW
 #GetTempPathA
 #GetTempPathW
 #InitializeCriticalSection

src/coreclr/inc/longfilepathwrappers.h

@@ -25,11 +25,6 @@ CreateFileWrapper(
     _In_opt_ HANDLE hTemplateFile
     );
 
-DWORD
-GetFileAttributesWrapper(
-    _In_ LPCWSTR lpFileName
-    );
-
 BOOL
 GetFileAttributesExWrapper(
     _In_ LPCWSTR lpFileName,

src/coreclr/pal/inc/pal.h

@@ -521,20 +521,6 @@ SearchPathW(
 
 #define SearchPath  SearchPathW
 
-PALIMPORT
-BOOL
-PALAPI
-CopyFileW(
-      IN LPCWSTR lpExistingFileName,
-      IN LPCWSTR lpNewFileName,
-      IN BOOL bFailIfExists);
-
-#ifdef UNICODE
-#define CopyFile CopyFileW
-#else
-#define CopyFile CopyFileA
-#endif
-
 PALIMPORT
 DWORD
 PALAPI
@@ -712,21 +698,6 @@ GetFullPathNameW(
 #define GetFullPathName GetFullPathNameA
 #endif
 
-PALIMPORT
-UINT
-PALAPI
-GetTempFileNameW(
-         IN LPCWSTR lpPathName,
-         IN LPCWSTR lpPrefixString,
-         IN UINT uUnique,
-         OUT LPWSTR lpTempFileName);
-
-#ifdef UNICODE
-#define GetTempFileName GetTempFileNameW
-#else
-#define GetTempFileName GetTempFileNameA
-#endif
-
 PALIMPORT
 DWORD
 PALAPI

src/coreclr/pal/inc/palprivate.h

@@ -20,15 +20,6 @@ CreateFileA(
         IN DWORD dwFlagsAndAttributes,
         IN HANDLE hTemplateFile);
 
-PALIMPORT
-BOOL
-PALAPI
-CopyFileA(
-      IN LPCSTR lpExistingFileName,
-      IN LPCSTR lpNewFileName,
-      IN BOOL bFailIfExists);
-
-
 PALIMPORT
 BOOL
 PALAPI
@@ -78,15 +69,6 @@ GetFullPathNameA(
          OUT LPSTR lpBuffer,
          OUT LPSTR *lpFilePart);
 
-PALIMPORT
-UINT
-PALAPI
-GetTempFileNameA(
-         IN LPCSTR lpPathName,
-         IN LPCSTR lpPrefixString,
-         IN UINT uUnique,
-         OUT LPSTR lpTempFileName);
-
 PALIMPORT
 DWORD
 PALAPI