micro: Remove trailing whitespace + autosave = problem

Because when the autosave kicks in while you are typing, the current
trailing whitespace in the current line gets removed and you may end
up joining words without noticing.

.config/micro/settings.json

@@ -10,7 +10,6 @@
     },
     "hlsearch": true,
     "parsecursor": true,
-    "rmtrailingws": true,
     "savecursor": true,
     "softwrap": true,
     "tabsize": 8