Reduce the PR's scope

Author: Marcondiro

.github/workflows/build_and_test.yml

@@ -277,7 +277,6 @@ jobs:
           - ./fuzzers/forkserver/fuzzbench_forkserver_cmplog
           - ./fuzzers/forkserver/libafl-fuzz
           - ./fuzzers/forkserver/baby_fuzzer_with_forkexecutor
-          - ./fuzzers/full_system/qemu_intel_pt_bootloader
 
           # Full-system
           - ./fuzzers/full_system/nyx_launcher

fuzzers/.cargo/config.toml

@@ -0,0 +1,2 @@
+[target.x86_64-unknown-linux-gnu]
+rustflags = ["-C", "target-cpu=native"]