app-layer: remove checks

Now that app-layer parser registrations are validated at startup,
a number of runtime checks are no longer necessary. So remove them.

src/detect-engine-state.c

@@ -240,7 +240,6 @@ void DetectEngineStateFree(DetectEngineState *state)
 
 static int HasStoredSigs(const Flow *f, const uint8_t flags)
 {
-    if (AppLayerParserProtocolSupportsTxs(f->proto, f->alproto)) {
     AppProto alproto = f->alproto;
     void *alstate = FlowGetAppState(f);
     if (!StateIsValid(f->alproto, alstate)) {
@@ -271,7 +270,6 @@ static int HasStoredSigs(const Flow *f, const uint8_t flags)
             }
         }
     }
-    }
     return 0;
 }
 
@@ -311,7 +309,6 @@ static void StoreStateTxFileOnly(DetectEngineThreadCtx *det_ctx,
         Flow *f, const uint8_t flags, const uint64_t tx_id, void *tx,
         const uint16_t file_no_match)
 {
-    if (AppLayerParserSupportsTxDetectState(f->proto, f->alproto)) {
     DetectEngineState *destate = AppLayerParserGetTxDetectState(f->proto, f->alproto, tx);
     if (destate == NULL) {
         destate = DetectEngineStateAlloc();
@@ -324,7 +321,6 @@ static void StoreStateTxFileOnly(DetectEngineThreadCtx *det_ctx,
         SCLogDebug("destate created for %"PRIu64, tx_id);
     }
     StoreStateTxHandleFiles(det_ctx, f, destate, flags, tx_id, file_no_match);
-    }
 }
 
 /**
@@ -336,7 +332,6 @@ static void StoreStateTx(DetectEngineThreadCtx *det_ctx,
         const Signature *s, const SigMatchData *smd,
         const uint32_t inspect_flags, const uint16_t file_no_match, int check_before_add)
 {
-    if (AppLayerParserSupportsTxDetectState(f->proto, f->alproto)) {
     DetectEngineState *destate = AppLayerParserGetTxDetectState(f->proto, f->alproto, tx);
     if (destate == NULL) {
         destate = DetectEngineStateAlloc();
@@ -355,7 +350,6 @@ static void StoreStateTx(DetectEngineThreadCtx *det_ctx,
         DeStateSignatureAppend(destate, s, inspect_flags, flags);
 
     StoreStateTxHandleFiles(det_ctx, f, destate, flags, tx_id, file_no_match);
-    }
     SCLogDebug("Stored for TX %"PRIu64, tx_id);
 }
 
@@ -367,9 +361,6 @@ int DeStateDetectStartDetection(ThreadVars *tv, DetectEngineCtx *de_ctx,
     SCLogDebug("rule %u/%u", s->id, s->num);
 
     /* TX based matches (inspect engines) */
-    if (unlikely(!AppLayerParserProtocolSupportsTxs(f->proto, alproto))) {
-        return 0;
-    }
     void *alstate = FlowGetAppState(f);
     if (unlikely(!StateIsValid(alproto, alstate))) {
         return 0;
@@ -746,7 +737,6 @@ void DeStateDetectContinueDetection(ThreadVars *tv, DetectEngineCtx *de_ctx,
 
     SCLogDebug("starting continue detection for packet %"PRIu64, p->pcap_cnt);
 
-    if (AppLayerParserProtocolSupportsTxs(f->proto, alproto)) {
     void *alstate = FlowGetAppState(f);
     if (!StateIsValid(alproto, alstate)) {
         return;
@@ -821,7 +811,6 @@ void DeStateDetectContinueDetection(ThreadVars *tv, DetectEngineCtx *de_ctx,
             break;
         }
     }
-    }
 
 end:
     det_ctx->p = NULL;
@@ -850,7 +839,6 @@ void DeStateUpdateInspectTransactionId(Flow *f, const uint8_t flags)
  */
 void DetectEngineStateResetTxs(Flow *f)
 {
-    if (AppLayerParserProtocolSupportsTxs(f->proto, f->alproto)) {
     void *alstate = FlowGetAppState(f);
     if (!StateIsValid(f->alproto, alstate)) {
         return;
@@ -880,7 +868,6 @@ void DetectEngineStateResetTxs(Flow *f)
             tx_de_state->dir_state[1].flags = 0;
         }
     }
-    }
 }
 
 /*********Unittests*********/