chore: remove redundant assignment to 'f2'

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Author: anandkaranubc

lib/node_modules/@stdlib/math/base/special/hyp2f1/src/main.c

@@ -126,7 +126,6 @@ static double hyp2f1ra( const double a, const double b, const double c, const do
 
 	if ( da < 0.0 ) {
 		// Backward recurrence...
-		f2 = 0.0;
 		f1 = hys2f1( t, b, c, x, &err );
 		*loss += err;
 		f0 = hys2f1( t-1.0, b, c, x, &err );
@@ -142,7 +141,6 @@ static double hyp2f1ra( const double a, const double b, const double c, const do
 		}
 	} else {
 		// Forward recurrence...
-		f2 = 0.0;
 		f1 = hys2f1( t, b, c, x, &err );
 		*loss += err;
 		f0 = hys2f1( t+1.0, b, c, x, &err );