Remove the ffi-headers feature

Rely on a separate cbindgen instance instead, which is less self-contained but more practical.

.github/workflows/ci.yml

@@ -43,7 +43,9 @@ jobs:
       # Need to rebuild the FFI wrapper so that its binary is given a filename
       # without a hash.
       - name: Build FFI wrapper
-        run: cargo build --manifest-path ffi/Cargo.toml --features ffi-headers
+        run: |
+          cargo build --manifest-path ffi/Cargo.toml
+          cbindgen ffi/ -o ffi/include/libloadorder.h
 
       # Use bash because PowerShell doesn't fail if one command fails.
       - name: Build and run C++ tests
@@ -87,7 +89,9 @@ jobs:
       # Need to rebuild the FFI wrapper so that its binary is given a filename
       # without a hash.
       - name: Build FFI wrapper
-        run: cargo build --manifest-path ffi/Cargo.toml --features ffi-headers
+        run: |
+          cargo build --manifest-path ffi/Cargo.toml
+          cbindgen ffi/ -o ffi/include/libloadorder.h
 
       # Use bash because PowerShell doesn't fail if one command fails.
       - name: Build and run C++ tests

ffi/Cargo.toml

@@ -2,7 +2,6 @@
 name = "libloadorder-ffi"
 version = "15.0.2"
 authors = ["Oliver Hamlet <oliver@ortham.io>"]
-build = "build.rs"
 description = "A wrapper library providing a C FFI for libloadorder."
 documentation = "https://docs.rs/libloadorder-ffi"
 repository = "https://github.com/Ortham/libloadorder.git"
@@ -26,10 +25,3 @@ tempfile = "3.0.0"
 [lib]
 name = "loadorder_ffi"
 crate-type = ["staticlib"]
-
-[features]
-default = []
-ffi-headers = ["cbindgen"]
-
-[build-dependencies]
-cbindgen = { version = "0.26", optional = true }