reverse-ramdisk.c: TempFile: reduce #if scope

c-programming/reverse-ramdisk.c

@@ -39,19 +39,15 @@ To-Do: Add thread-safe versions of functions (use postfix `_r`)
 	exit(EXIT_FAILURE); \
 } while (0)
 
+typedef struct {
+	int ID;
+	char* file_path;
 #if IS_POSIX
-typedef struct {
-	int ID;
-	char* file_path;
 	int file;
-} TempFile;
 #else
-typedef struct {
-	int ID;
-	char* file_path;
 	FILE* file;
-} TempFile;
 #endif
+} TempFile;
 
 TempFile* temp_files = NULL;
 size_t num_temp_files = 0;