detect/parse: reduce scope of main parse func

src/detect-parse.c

@@ -1127,7 +1127,7 @@ error:
  *  \param -1 parse error
  *  \param 0 ok
  */
-int SigParse(DetectEngineCtx *de_ctx, Signature *s, const char *sigstr, uint8_t addrs_direction)
+static int SigParse(DetectEngineCtx *de_ctx, Signature *s, const char *sigstr, uint8_t addrs_direction)
 {
     SCEnter();
 

src/detect-parse.h

@@ -40,7 +40,6 @@ enum {
 };
 
 /* prototypes */
-int SigParse(DetectEngineCtx *, Signature *, const char *, uint8_t);
 Signature *SigAlloc(void);
 void SigFree(Signature *s);
 Signature *SigInit(DetectEngineCtx *, const char *sigstr);