pgsql: Remove ICU tests from default run

Remove ICU tests from default run

These tests require the test database to be in UTF8 encoding. Until
there is a better solution, take them out of the default test set and
treat them like the existing collate.linux.utf8 test, meaning it has to
be selected manually.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/e148009740f91ecc9555227d0d52ac43df30e6ed

Modified Files
--------------
doc/src/sgml/regress.sgml | 6 +-
src/test/regress/GNUmakefile | 3 -
src/test/regress/expected/collate.icu.out | 1126 ------------------------
src/test/regress/expected/collate.icu.utf8.out | 1126 ++++++++++++++++++++++++
src/test/regress/sql/collate.icu.sql | 433 ---------
src/test/regress/sql/collate.icu.utf8.sql | 433 +++++++++
6 files changed, 1563 insertions(+), 1564 deletions(-)