remove clear button

app.py

@@ -122,18 +122,10 @@ def area():
     # vals = set([name2id(var, n) for n in names])
     with st.form("form2"):
         container = st.container()
-        col1, col2, col3 = st.columns(3)
-        with col1:
-            all = st.form_submit_button("Select all")
-        with col2:
-            clear = st.form_submit_button("Clear all")
-
+        all = st.form_submit_button("Select all")
         if all:
             names = container.multiselect(f"Select one or more {var} values to display:",
                                           get_unique(var), [v for k, v in DATA_META[var]['codes'].items() if k != -1])
-        elif clear:
-            names = container.multiselect(f"Select one or more {var} values to display:",
-                                          get_unique(var), [])
         else:
             names = container.multiselect(f"Select one or more {var} values to display:",
                                           get_unique(var),
@@ -142,8 +134,7 @@ def area():
                                                    'Chemists'] if var == 'OCC1950' else ['Drugs and medicines',
                                                                                          'Fisheries',
                                                                                          'Glass and glass products', ])
-        with col3:
-            st.form_submit_button("Apply")
+        st.form_submit_button("Apply")
 
     df = get_area_data(var, filters)
     df = df[df[var].isin(names)]