Patch fix Unity 2019

Author: SimonDarksideJ

Runtime/Scripts/Effects/UIParticleSystem.cs

@@ -223,7 +223,7 @@ protected override void OnPopulateMesh(VertexHelper vh)
                             frame = Mathf.FloorToInt(frameProgress * textureSheetAnimation.numTilesX);
 
                             int row = textureSheetAnimation.rowIndex;
-#if UNITY_2020 || UNITY_2019_OR_NEWER 
+#if UNITY_2020 || UNITY_2019
                             if (textureSheetAnimation.rowMode == ParticleSystemAnimationRowMode.Random)
 #else
                             if (textureSheetAnimation.useRandomRow)