do not cancel selection when entering beacon mode

fixes #373.

Author: eshrh

meow-core.el

@@ -87,7 +87,6 @@
       (progn
         (setq meow--beacon-backup-hl-line (bound-and-true-p hl-line-mode)
               meow--beacon-defining-kbd-macro nil)
-        (meow--cancel-selection)
         (hl-line-mode -1))
     (when meow--beacon-backup-hl-line
       (hl-line-mode 1))))