Use delete[] to de-allocate pointers from new[]

Upstream clang has a new diagnostic, '-Wmismatched-new-delete' to
generate a warning (that becomes an error with -Werror) when delete is
used to deallocate pointers created with 'new[]'.  This patch fixes
'delete's that trigger this warning/error.

Change-Id: Id7b6f6c2df3e860e576de55e2f61f3d2be3a3986