At some point the arm-elf output became the same as arm-eabi. Remove
the special handling of arm-elf.
gas/testsuite/ChangeLog:
2014-07-10 Will Newton <will.newton@linaro.org>
* gas/elf/elf.exp: Remove special handling of arm-elf for
section2 test.
* gas/elf/section2.e-armeabi: Rename to...
* gas/elf/section2.e-arm: ...here.
* gas/elf/section2.e-armelf: Remove file.