treewide: remove @sdll from maintainers

sdll github handle returns 404. Sasha agreed to remove @sdll
maintainer entry.

pkgs/development/python-modules/cymem/default.nix

@@ -17,7 +17,7 @@ buildPythonPackage rec {
   };
 
   propagatedBuildInputs = [
-   cython
+    cython
   ];
 
   prePatch = ''
@@ -34,6 +34,6 @@ buildPythonPackage rec {
     description = "Cython memory pool for RAII-style memory management";
     homepage = "https://github.com/explosion/cymem";
     license = licenses.mit;
-    maintainers = with maintainers; [ sdll ];
-    };
+    maintainers = with maintainers; [ ];
+  };
 }