src: remove unused struct fields

Even if they get defined

src/detect-engine.c

@@ -3303,7 +3303,6 @@ static TmEcode ThreadCtxDoInit (DetectEngineCtx *de_ctx, DetectEngineThreadCtx *
         if (det_ctx->base64_decoded == NULL) {
             return TM_ECODE_FAILED;
         }
-        det_ctx->base64_decoded_len_max = de_ctx->base64_decode_max_len;
         det_ctx->base64_decoded_len = 0;
     }
 

src/detect.h

@@ -1139,7 +1139,6 @@ typedef struct DetectEngineThreadCtx_ {
 
     uint8_t *base64_decoded;
     int base64_decoded_len;
-    int base64_decoded_len_max;
 
     /* counter for the filestore array below -- up here for cache reasons. */
     uint16_t filestore_cnt;

src/source-pcap-file-directory-helper.h

@@ -44,7 +44,6 @@ typedef struct PcapFileDirectoryVars_
     PcapFileFileVars *current_file;
     bool should_loop;
     bool should_recurse;
-    uint8_t cur_dir_depth;
     time_t delay;
     time_t poll_interval;
 

src/source-pcap-file.c

@@ -319,7 +319,6 @@ TmEcode ReceivePcapFileThreadInit(ThreadVars *tv, const void *initdata, void **d
             CleanupPcapFileThreadVars(ptv);
             SCReturnInt(TM_ECODE_OK);
         }
-        pv->cur_dir_depth = 0;
 
         int should_recurse;
         pv->should_recurse = false;

src/util-mpm.c

@@ -108,7 +108,6 @@ int32_t MpmFactoryRegisterMpmCtxProfile(
     else
         pitem->next = nitem;
 
-    de_ctx->mpm_ctx_factory_container->no_of_items++;
     return nitem->id;
 }
 

src/util-mpm.h

@@ -124,7 +124,6 @@ typedef struct MpmCtxFactoryItem {
 
 typedef struct MpmCtxFactoryContainer_ {
     MpmCtxFactoryItem *items;
-    int32_t no_of_items;
     int32_t max_id;
 } MpmCtxFactoryContainer;