refactor: remove unnecessary wrapping

`v` is already float32 per L86.

Signed-off-by: Athan <[email protected]>

Author: kgryte

lib/node_modules/@stdlib/math/base/special/powf/lib/logxf.js

@@ -87,7 +87,7 @@ function logxf( out, ax ) {
 	t1 = f32( u + v );
 	tmp = toWordf( t1 ) | 0; // asm type annotation
 	t1 = fromWordf( tmp & TRUNC_MASK );
-	t2 = f32( f32( v ) - f32( t1 - u ) );
+	t2 = f32( v - f32( t1 - u ) );
 
 	out[ 0 ] = t1;
 	out[ 1 ] = t2;