Option A:Use the Simplify Polygon tool to remove a portion of the vertices. The resulting feature class can be reshaped.The tool is located in ArcToolbox > Cartography Tools > Generalization > Simplify Polygon.Option B:Create a new feature class with a smaller tolerance, and load the existing data.1. ArcCatalog > Create a new polygon feature class > set the default tolerance to a lower number > import schema from an existing feature class.2. Right-click the new feature class > Load > Load Data > Load the data from the original feature class.If the tolerance is small enough, the new feature class can be reshaped.