Hi Vijay,
Thanks for using Syncfusion Products.
Remove an toolbar item in RichTextEditor?
You can Remove an tool bar item in RichTexEditor by using the below given snippet:
this.RichTextEditor1.ToolBars[1].Items.RemoveAt(0);
Please refer to the sample in the below link which illustrates the above.
http://websamples.syncfusion.com/samples/Tools.Web/6.1.0.34/F71015/main.htm
Please let me know if you have any questions.
Regards,
Vinoth