Keep usage of `try_sudo` only when necessary

Typically this would apply to the following scenarios (commands):

+ removing files/directories (rm)
+ editing protected files, e.g., crontab
+ changing file/directory permissions (chmod)
+ syncing of files to another location (rsync)
+ control daemonized services (e.g., Nginx, PHP FPM, etc.)

We shouldn't need to use `try_sudo` for following scenarios (either for security reasons or poorly thoughtout tasks):

+ changing ownership of files/directories (chown)
+ creating directories (mkdir)
+ moving files/directories (mv)
+ copying files/directores (cp)
+ symlinking files/directories (ln)