feat(data-pipeline-ffi): remove macros expansion for function signatures

Signed-off-by: Alexandre Rulleau <[email protected]>

Author: Leiyks

data-pipeline-ffi/cbindgen.toml

@@ -45,7 +45,4 @@ must_use = "DDOG_CHECK_RETURN"
 
 [parse]
 parse_deps = true
-include = ["ddcommon", "ddcommon-ffi", "data-pipeline"]
-
-[parse.expand]
-crates = ["data-pipeline-ffi"]
+include = ["ddcommon", "ddcommon-ffi", "data-pipeline"]