python3Packages.coal: Revert fix build with boost 1.89

This reverts commit eb953e2372.
Fixed upstream in 3.0.3

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

@@ -17,17 +17,6 @@ toPythonModule (
   coal.overrideAttrs (super: {
     pname = "py-${super.pname}";
 
-    # Finding `boost_system` fails because the stub compiled library of
-    # Boost.System, which has been a header-only library since 1.69, was
-    # removed in 1.89.
-    # See https://www.boost.org/releases/1.89.0/ for details.
-    postPatch = ''
-      substituteInPlace CMakeLists.txt \
-        --replace-fail \
-          "find_package(Boost REQUIRED COMPONENTS system)" \
-          "find_package(Boost REQUIRED OPTIONAL_COMPONENTS system)"
-    '';
-
     cmakeFlags = super.cmakeFlags ++ [
       (lib.cmakeBool "BUILD_PYTHON_INTERFACE" true)
       (lib.cmakeBool "BUILD_STANDALONE_PYTHON_INTERFACE" buildStandalone)