Revert "fix(grouping): non-canonical ordering"

This reverts commit 02c44c92d0.

crates/pacdef_core/src/grouping/group.rs

@@ -94,7 +94,10 @@ fn is_child_of_any_dir(path: &Path, dirs: &[PathBuf]) -> bool {
 
 impl PartialOrd for Group {
     fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
-        Some(self.cmp(other))
+        match self.name.partial_cmp(&other.name) {
+            Some(core::cmp::Ordering::Equal) => None,
+            ord => ord,
+        }
     }
 }
 

crates/pacdef_core/src/grouping/section.rs

@@ -67,7 +67,7 @@ impl Eq for Section {
 
 impl PartialOrd for Section {
     fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
-        Some(self.cmp(other))
+        self.name.partial_cmp(&other.name)
     }
 }