Fix classic skin follow circles animating from incorrect starting point

[peppy]

I don't know how this happened, but it looks completely wrong. The follower was starting from inside the circle.

Reference

[frenzibyte]

Is the reference link correct? I'm not sure what it signifies.

[peppy]

Is the reference link correct? I'm not sure what it signifies.

notice: 1 -> 2, not 0.5 -> 2.

[bdach]

The 0.5 blames back to 7ed4eb5. I assume what that was trying to replicate was this, but it isn't entirely clear to me why it was doing 0.5 -> 2 and not either 0.5 -> 1 or 1 -> 2.......

[bdach]

Okay the fact that the scale specs are doubled is explained by

osu/osu.Game.Rulesets.Osu/Skinning/Legacy/LegacyFollowCircle.cs

Lines 14 to 15 in 9c40ff2

	// follow circles are 2x the hitcircle resolution in legacy skins (since they are scaled down from >1x
	animationContent.Scale *= 0.5f;

Did a visual comparison against stable, it's difficult to tell at such high speeds whether it's matching because of frame pacing alone, but it seems closer to what it should be.