docs(examples): Remove reference to non-existent example

examples/01a_quick_example.rs

@@ -5,7 +5,7 @@ fn main() {
     // far less verbose that shown in 01b_QuickExample.rs, but is more readable. The downside is you cannot set
     // the more advanced configuration options using this method (well...actually you can, you'll see ;) )
     //
-    // The example below is functionally identical to the 01b_quick_example.rs and 01c_quick_example.rs
+    // The example below is functionally identical to the 01b_quick_example.rs
     //
     // Create an application with 5 possible arguments (2 auto generated) and 2 subcommands (1 auto generated)
     //    - A config file

examples/01b_quick_example.rs

@@ -4,7 +4,7 @@ fn main() {
     // This method shows the traditional, and slightly more configurable way to set up arguments. This method is
     // more verbose, but allows setting more configuration options, and even supports easier dynamic generation.
     //
-    // The example below is functionally identical to the 01a_quick_example.rs and 01c_quick_example.rs
+    // The example below is functionally identical to the 01a_quick_example.rs
     //
     // *NOTE:* You can actually achieve the best of both worlds by using Arg::from() (instead of Arg::new())
     // and *then* setting any additional properties.