Don't wrap make-standalone-toolchain.sh's copy_* commands in run()

Outputs of commands wrapped in run() can be suppressed if no --verbose
is specified nor environment variable NDK_LOGFILE, including
error messages caused by disk full.

Run() is perfect in tracking toolchain build, but not for user-facing
script like make-standalone-toolchain.sh

BUG=18597324

Change-Id: I33d3a1496f44c768d2cc211ec4b18246d037bfbb
1 file changed