remove unused macro parameter

src/lib.rs

@@ -413,14 +413,12 @@ assert_eq!(two_point_75.to_string(), \"2.8\");
 
         // inherent methods that do not require Frac bounds, some of which can thus be const
         fixed_no_frac! {
-            $description,
             $Fixed[$s_fixed]($Inner[$s_inner], $s_nbits),
             $nbytes, $bytes_val, $be_bytes, $le_bytes,
             $UInner, $Signedness
         }
         // inherent methods that require Frac bounds, and cannot be const
         fixed_frac! {
-            $description,
             $Fixed[$s_fixed]($Inner[$s_inner], $LeEqU, $s_nbits, $s_nbits_m4),
             $UInner, $Signedness
         }

src/macros_frac.rs

@@ -15,7 +15,6 @@
 
 macro_rules! fixed_frac {
     (
-        $description:expr,
         $Fixed:ident[$s_fixed:expr](
             $Inner:ty[$s_inner:expr], $LeEqU:tt, $s_nbits:expr, $s_nbits_m4:expr
         ),

src/macros_no_frac.rs

@@ -15,7 +15,6 @@
 
 macro_rules! fixed_no_frac {
     (
-        $description:expr,
         $Fixed:ident[$s_fixed:expr]($Inner:ty[$s_inner:expr], $s_nbits:expr),
         $nbytes:expr, $bytes_val:expr, $be_bytes:expr, $le_bytes:expr,
         $UInner:ty, $Signedness:tt