Revert "rust-hack"

This reverts commit 7e8b5a9c9d.

mercurial.spec

@@ -22,13 +22,11 @@ BuildRequires: pkgconfig
 BuildRequires: python3-devel
 BuildRequires: python3-setuptools
 BuildRequires: python3-docutils
-BuildRequires: rust-packaging
 
 Provides: hg = %{version}-%{release}
 Requires: python3
 Requires: emacs-filesystem
 Recommends: python3-fb-re2
-Recommends: mercurial-rust = %{version}-%{release}
 
 %description
 Mercurial is a fast, lightweight source control management system designed
@@ -69,43 +67,11 @@ Mercurial. When you type chg, a C program connects to that background process
 and executes Mercurial commands.
 
 
-%package rust
-Summary:    Mercurial Rust extensions for speeding up certain operations
-Requires:   hg = %{version}-%{release}
-
-%description rust
-The following operations are sped up when using Rust:
-
-    - discovery of differences between repositories (pull/push)
-    - nodemap (see :hg:`help config.format.use-persistent-nodemap`)
-    - all commands using the dirstate (status, commit, diff, add, update, etc.)
-    - dirstate-v2 (see :hg:`help config.format.use-dirstate-v2`)
-    - iteration over ancestors in a graph
-
-More features are in the works, and improvements on the above listed are still
-in progress. For more experimental work see the "rhg" section.
-
-
 %prep
 %setup -q -n %{name}-%{upstreamversion}
-#sed -i setup.py -e "s/'cargo', 'rustc', '--release'/\0, '--offline'/g"
-
-pushd rust
-#autosetup -n %{crate}-%{version_no_tilde} -p1
-echo
-%cargo_prep
-echo
-#generate_buildrequires
-echo
-#cargo_generate_buildrequires -a
-popd
 
 %build
-pushd rust
-%cargo_build -a
-popd
-
-echo PYTHON=%{python3} make all
+PYTHON=%{python3} make all
 
 # chg will invoke the 'hg' command - no direct Python dependency
 pushd contrib/chg
@@ -113,12 +79,8 @@ make
 popd
 
 %install
-pushd rust
-%cargo_install -a
-popd
-
-echo %{python3} setup.py install -O1 --root %{buildroot} --prefix %{_prefix} --record=%{name}.files
-echo make install-doc DESTDIR=%{buildroot} MANDIR=%{_mandir}
+%{python3} setup.py install -O1 --root %{buildroot} --prefix %{_prefix} --record=%{name}.files
+make install-doc DESTDIR=%{buildroot} MANDIR=%{_mandir}
 
 grep -v -e 'hgk.py*' \
         -e "%{python3_sitearch}/mercurial/" \
@@ -214,8 +176,6 @@ pathfix.py -pni "%{python3}" %{buildroot}%{_bindir}/hg-ssh
 %{_bindir}/chg
 %doc %attr(644,root,root) %{_mandir}/man?/chg.*.gz
 
-%files rust
-%{python3_sitearch}/mercurial/rustext.cpython-*-*-linux-gnu.so
 
 #%%check
 # This will now fail everytime. Mercurial is not ported properly for Python3