dthelp: Remove define M_PROTO that was always turned on (for all platforms) that enabled ANSI not K&R function prototypes

cde/programs/dthelp/parser/pass2/util/allwhite.c

@@ -26,25 +26,12 @@
 */
 #include "basic.h"
 
-LOGICAL m_allwhite(
-#if defined(M_PROTO)
-  const M_WCHAR *string
-#endif
-  ) ;
+LOGICAL m_allwhite(const M_WCHAR *string);
 
-LOGICAL m_whitespace(
-#if defined(M_PROTO)
-  M_WCHAR c
-#endif
-  ) ;
+LOGICAL m_whitespace(M_WCHAR c);
 
 /* Test if a string contains only white space characters */
-#if defined(M_PROTO)
 LOGICAL m_allwhite(const M_WCHAR *string )
-#else
-LOGICAL m_allwhite(string)
-M_WCHAR *string ;
-#endif /* M_PROTO */
 {
 const M_WCHAR *p ;