files: remove unused Rust binding for file pruning

rust/src/core.rs

@@ -177,8 +177,6 @@ pub type SCFileAppendGAPById = extern "C" fn (
         file_container: &FileContainer,
         track_id: u32,
         data: *const u8, data_len: u32) -> i32;
-pub type SCFilePrune = extern "C" fn (
-        file_container: &FileContainer);
 pub type SCFileContainerRecycle = extern "C" fn (
         file_container: &FileContainer);
 
@@ -206,7 +204,6 @@ pub struct SuricataContext {
     pub FileAppendData: SCFileAppendDataById,
     pub FileAppendGAP: SCFileAppendGAPById,
     pub FileContainerRecycle: SCFileContainerRecycle,
-    pub FilePrune: SCFilePrune,
 
     pub AppLayerRegisterParser: extern fn(parser: *const crate::applayer::RustParser, alproto: AppProto) -> std::os::raw::c_int,
 }

rust/src/filecontainer.rs

@@ -128,14 +128,4 @@ impl FileContainer {
         }
 
     }
-
-    pub fn files_prune(&mut self) {
-        SCLogDebug!("FILECONTAINER: pruning");
-        match unsafe {SC} {
-            None => panic!("BUG no suricata_config"),
-            Some(c) => {
-                (c.FilePrune)(self);
-            }
-        }
-    }
 }

src/rust-context.c

@@ -37,7 +37,6 @@ const SuricataContext suricata_context = {
     FileAppendDataById,
     FileAppendGAPById,
     FileContainerRecycle,
-    FilePrune,
 
     AppLayerRegisterParser,
 };

src/rust-context.h

@@ -59,7 +59,6 @@ typedef struct SuricataContext_ {
     int (*FileAppendGAPById)(FileContainer *, uint32_t track_id,
             const uint8_t *data, uint32_t data_len);
     void (*FileContainerRecycle)(FileContainer *ffc);
-    void (*FilePrune)(FileContainer *ffc);
 
     int (*AppLayerRegisterParser)(const struct AppLayerParser *p, AppProto alproto);