Anagram canonical-data: Remove duplicate test case of subject “banana”
Anagram canonical-data: Remove duplicate test case of subject “banana”

This test case does not introduce any new requirement from the test
with description "does not detect a anagram if the original word is
repeated".

According to the documentation for test suites, each test is supposed to
“introduce a single new requirement”[1]. This test case violates what’s
mentioned in the documentation.

Let’s remove this test case.

[1]: https://github.com/exercism/docs/blob/master/language-tracks/exercises/anatomy/test-suites.md

ErikSchierboom/x-common,exercism/x-common,petertseng/x-common,ErikSchierboom/x-common,jmluy/x-common,jmluy/x-common,jmluy/x-common,rpottsoh/x-common,petertseng/x-common,exercism/x-common,rpottsoh/x-common