removing unused code in lsh_table.h
removing unused code in lsh_table.h

FALCONN-LIB/FALCONN,ilyaraz/FALCONN,FALCONN-LIB/FALCONN,ilyaraz/FALCONN,FALCONN-LIB/FALCONN,ilyaraz/falconn_polygon,FALCONN-LIB/FALCONN,ilyaraz/FALCONN,ilyaraz/falconn_polygon,ilyaraz/falconn_polygon,ilyaraz/FALCONN,ilyaraz/falconn_polygon