Drop the re-exports of PyMem_Raw* calls as those are not available using the limited API.

Author: adamreichold

examples/simple/Cargo.toml

@@ -9,5 +9,5 @@ name = "rust_ext"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = { version = "0.16", features = ["extension-module"] }
+pyo3 = { version = "0.16", features = ["extension-module", "abi3-py37"] }
 numpy = { path = "../.." }

src/npyffi/array.rs

@@ -394,12 +394,6 @@ pub unsafe fn PyArray_CheckExact(py: Python, op: *mut PyObject) -> c_int {
     (ffi::Py_TYPE(op) == PY_ARRAY_API.get_type_object(py, NpyTypes::PyArray_Type)) as _
 }
 
-// these are under `#if NPY_USE_PYMEM == 1` which seems to be always defined as 1
-pub use pyo3::ffi::{
-    PyMem_RawFree as PyArray_free, PyMem_RawMalloc as PyArray_malloc,
-    PyMem_RawRealloc as PyArray_realloc,
-};
-
 #[cfg(test)]
 mod tests {
     use super::PY_ARRAY_API;