refactor: remove redundant cast when generating integral part

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Author: anandkaranubc

lib/node_modules/@stdlib/math/base/special/modf/src/main.c

@@ -99,7 +99,6 @@ void stdlib_base_modf( const double x, double* integral, double* frac ) {
 		high &= ( ~i );
 
 		// Generate the integral part:
-		j = i;
 		stdlib_base_float64_from_words( high, 0, &j );
 		*integral = j;
 		*frac = x - j;
@@ -124,7 +123,6 @@ void stdlib_base_modf( const double x, double* integral, double* frac ) {
 	low &= ( ~i );
 
 	// Generate the integral part:
-	j = i;
 	stdlib_base_float64_from_words( high, low, &j );
 	*integral = j;
 	*frac = x - j;