refactor: Remove redundant dose entry clearing and updating in save process

src/main.py

@@ -313,13 +313,6 @@ class MedTrackerApp:
             self.medicine_vars[key][0].set(0)
         self.note_var.set("")
 
-        # Clear dose entry fields
-        for entry in self.dose_entries.values():
-            entry.delete(0, tk.END)
-
-        # Update dose displays
-        self._update_dose_displays()
-
     def load_data(self) -> None:
         """Load data from the CSV file into the table and graph."""
         logger.debug("Loading data from CSV.")