Revert "Fix non-functional references with section title with same na…

…me."

This reverts commit d677521.

sphinxcontrib/matlab.py

@@ -258,6 +258,14 @@ def get_index_text(self, modname, name):
     def add_target_and_index(self, name_cls, sig, signode):
         modname = self.options.get("module", self.env.temp_data.get("mat:module"))
 
+        if self.env.config.matlab_short_links and not name_cls[0] == modname:
+            # modname is only used for package names
+            # - "target.+package" => "package"
+            # - "target" => ""
+            parts = modname.split(".")
+            parts = [part for part in parts if part.startswith("+")]
+            modname = ".".join(parts)
+
         fullname = (modname and modname + "." or "") + name_cls[0]
         fullname = fullname.lstrip(".")