tasks: do not touch any settings of system directory /usr/local/bin (#116)

/usr/local/bin should always exist on target operating system as it
is part of default system layout. If it doesn't exist, it is not
this role reponsibility to create it or change its permissions.

Author: paulfantom

tasks/install.yml

@@ -49,12 +49,6 @@
   delegate_to: localhost
   check_mode: false
 
-- name: Create /usr/local/bin
-  file:
-    path: /usr/local/bin
-    state: directory
-    mode: 0755
-
 - name: Propagate node_exporter binaries
   copy:
     src: "/tmp/node_exporter-{{ node_exporter_version }}.linux-{{ go_arch }}/node_exporter"