detect/tls: minor fingerprint cleanup

(cherry picked from commit ee68947460)

src/detect-tls.c

@@ -559,7 +559,6 @@ static void DetectTlsIssuerDNFree(DetectEngineCtx *de_ctx, void *ptr)
  */
 static int DetectTlsFingerprintSetup (DetectEngineCtx *de_ctx, Signature *s, const char *str)
 {
-
     if (DetectContentSetup(de_ctx, s, str) < 0) {
         return -1;
     }
@@ -579,8 +578,6 @@ static int DetectTlsFingerprintSetup (DetectEngineCtx *de_ctx, Signature *s, con
 static void DetectTlsFingerprintFree(DetectEngineCtx *de_ctx, void *ptr)
 {
     DetectTlsData *id_d = (DetectTlsData *)ptr;
-    if (id_d->fingerprint)
-        SCFree(id_d->fingerprint);
     SCFree(id_d);
 }
 

src/detect-tls.h

@@ -38,8 +38,7 @@ typedef struct DetectTlsData_ {
     uint16_t ver; /** tls version to match */
     uint32_t flags; /** flags containing match variant (Negation for example) */
     char * subject; /** tls certificate subject substring to match */
-    char * issuerdn; /** tls certificate issuerDN substring to match */
+    char *issuerdn; /** tls certificate issuerDN substring to match */
-    char * fingerprint; /** tls fingerprint substring to match */
 } DetectTlsData;
 
 /* prototypes */