Revert "Add the waits that support I/O completion routines in kernel32.odin"

This reverts commit 46da53ba151b410efb8f4646008e1ebdcfa6ad40.

core/sys/windows/kernel32.odin

@@ -156,7 +156,6 @@ foreign kernel32 {
 		TolerableDelay: ULONG,
 	) -> BOOL ---
 	WaitForSingleObject :: proc(hHandle: HANDLE, dwMilliseconds: DWORD) -> DWORD ---
-	WaitForSingleObjectEx :: proc(hHandle: HANDLE, dwMilliseconds: DWORD, bAlertable: BOOL) -> DWORD ---
 	Sleep :: proc(dwMilliseconds: DWORD) ---
 	GetProcessId :: proc(handle: HANDLE) -> DWORD ---
 	CopyFileExW :: proc(
@@ -300,13 +299,6 @@ foreign kernel32 {
 		bWaitAll: BOOL,
 		dwMilliseconds: DWORD,
 	) -> DWORD ---
-	WaitForMultipleObjectsEx :: proc(
-		nCount: DWORD,
-		lpHandles: ^HANDLE,
-		bWaitAll: BOOL,
-		dwMilliseconds: DWORD,
-		bAlertable: BOOL,
-	) -> DWORD ---
 	CreateNamedPipeW :: proc(
 		lpName: LPCWSTR,
 		dwOpenMode: DWORD,