Delete introspection feature from libafl_libfuzzer (#2349)

* fix

* a

* delete it

Author: tokatoka

libafl_libfuzzer/Cargo.toml

@@ -32,9 +32,6 @@ document-features = ["dep:document-features"]
 ## Enables the derive macros for the arbitrary dependency, transparently forwarded from libfuzzer-sys
 arbitrary-derive = ["libfuzzer-sys/arbitrary-derive"]
 
-## Enables fuzzer introspection with LibAFL's `introspection` feature
-introspection = []
-
 ## Enables forking in the fuzzer runtime for restarting managers for Unix systems (on by default)
 fork = []
 

libafl_libfuzzer/build.rs

@@ -60,9 +60,6 @@ fn main() {
     if cfg!(any(feature = "fork")) {
         features.push("fork");
     }
-    if cfg!(any(feature = "introspection")) {
-        features.push("libafl/introspection");
-    }
 
     if !features.is_empty() {
         command.arg("--features").arg(features.join(","));