Remove 2024/ferguson2/prog.[23].c

These should really not be useful or interesting. They are not as they
were described either - they were initial tests and have no value now.

2024/ferguson2/.entry.json

@@ -85,22 +85,6 @@
             "display_via_github" : true,
             "entry_text" : "code talker dictionary in original form"
         },
-        {
-            "file_path" : "prog.2.c",
-            "inventory_order" : 200,
-            "OK_to_edit" : true,
-            "display_as" : "c",
-            "display_via_github" : true,
-            "entry_text" : "older version 2 of the code"
-        },
-        {
-            "file_path" : "prog.3.c",
-            "inventory_order" : 200,
-            "OK_to_edit" : true,
-            "display_as" : "c",
-            "display_via_github" : true,
-            "entry_text" : "older version 3 of the code"
-        },
         {
             "file_path" : "prog.obfus.c",
             "inventory_order" : 200,