FUNCTION: THM_LSP_REMOVE_SPIN_EPOCH, t, x, per, talk=talk NOT FOR GENERAL USE. CALLED BY THM_EFI_REMOVE_SPIKES ONLY FOR ISOLATED PARTICLE OR WAVE BURSTS NOT FOR ENTIRE ORBIT. PURPOSE: Remove the non-physical spiky signals in the efw data. INPUT: t -NEEDED. Time array x -NEEDED. Data per -NEEDED. Spin period. KEYWORDS: talk -OPTIONAL. Provides diagnostic plots. HISTORY: 2008-11-08: Created by Jianbao Tao at LASP@CU-Boulder. 2008-11-10: The head comment was added. 2009-03-30: REE. Rewrite to test epoch analysis.