[API CHANGE] remove oslDescriptorType/Flag

...apparently unused since the corresponding code was removed with
2ad02390 "#87132#removed obsolete parameter in
executeProcess" in 2001

(detected after 45ec1d9b "brute-force
find-and-remove of unused #define constants" boldly removed the corresponding
osl_Process_DF* defines from osl/process.h)

Change-Id: I49c20aec9b4acb08d42bfa0371ee1149d6c4e9d4

include/osl/process.h

@@ -69,16 +69,6 @@ typedef enum {
     osl_Process_E_FORCE_EQUAL_SIZE = SAL_MAX_ENUM
 } oslProcessError;
 
-typedef enum {
-    osl_Process_TypeNone,       /* no descriptor */
-    osl_Process_TypeSocket,     /* socket */
-    osl_Process_TypeFile,       /* file   */
-    osl_Process_TypePipe,       /* pipe   */
-    osl_Process_FORCE_EQUAL_SIZE = SAL_MAX_ENUM
-} oslDescriptorType;
-
-typedef sal_Int32 oslDescriptorFlag;
-
 #ifdef SAL_W32
 #   pragma pack(push, 8)
 #endif