algo: covers: Simplify nested if statements

alib2algo/src/stringology/cover/RelaxedApproximateEnhancedCoversComputation.h

@@ -83,13 +83,11 @@ void RelaxedApproximateEnhancedCoversComputation::processState ( const string::L
 				isFactor = true;
 			}
-		if ( ( currState->elements.size ( ) > 1 ) && ( currState->elements[0].depth == currState->depth ) ) {
-			if ( isFactor ) {
-				if ( ( currState->elements[currState->elements.size ( ) - 1].depth == x.getContent ( ).size ( ) ) && ( currState->depth > k ) )
-					updateEnhCov ( currState, covers, h );
-				processState ( x, k, currState, covers, h );
-			}
+		if ( ( currState->elements.size ( ) > 1 ) && ( ( currState->elements[0].depth == currState->depth ) && isFactor ) ) {
+			if ( ( currState->elements[currState->elements.size ( ) - 1].depth == x.getContent ( ).size ( ) ) && ( currState->depth > k ) )
+				updateEnhCov ( currState, covers, h );
+			processState ( x, k, currState, covers, h );
 		}
 		delete currState;