STLReader and ORJReader parsing obj file with incorrect number of points[Bug]

[luchen666]

Bug description

ORJREADER parses more points in the obj file than in the obj file, as well as in the c++parsed and meshlab software displayed；
The stl file also has a problem of a large number of duplicate points

Steps to reproduce

demo

Detailed Behavior

No response

Expected Behavior

1.NumberOfPoints is the actual number of points, without a large number of duplicate points；
2. Expect a clean method to clear duplicate points

Environment

• vtk.js version: 30.2.0
• Browsers: chrome
• OS: