Keyframe::IsIncreasing() remove loop to previous values and counter

The previous values do not influence the return value of the function
nor does looping over them have any side effect.

The next_repeats value is not used in any way, thus it doesn't need to
be calculated.

Author: musteresel

src/KeyFrame.cpp

@@ -302,31 +302,12 @@ bool Keyframe::IsIncreasing(int index)
 	// Is index a valid point?
 	if (index >= 1 && (index + 1) < Values.size()) {
 		int64_t current_value = GetLong(index);
-		int64_t previous_value = 0;
 		int64_t next_value = 0;
-		int64_t previous_repeats = 0;
-		int64_t next_repeats = 0;
-
-		// Loop backwards and look for the next unique value
-		for (std::vector<Coordinate>::iterator backwards_it = Values.begin() + index; backwards_it != Values.begin(); backwards_it--) {
-			previous_value = long(round((*backwards_it).Y));
-			if (previous_value == current_value) {
-				// Found same value
-				previous_repeats++;
-			} else {
-				// Found non repeating value, no more repeats found
-				break;
-			}
-		}
 
 		// Loop forwards and look for the next unique value
 		for (std::vector<Coordinate>::iterator forwards_it = Values.begin() + (index + 1); forwards_it != Values.end(); forwards_it++) {
 			next_value = long(round((*forwards_it).Y));
-			if (next_value == current_value) {
-				// Found same value
-				next_repeats++;
-			} else {
-				// Found non repeating value, no more repeats found
+			if (next_value != current_value) {
 				break;
 			}
 		}