pgsql: Removed old test files

Log Message:
-----------
Removed old test files

Removed Files:
-------------
pgsql/src/interfaces/ecpg/test:
dt_test.pgc
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/dt_test.pgc)
dyntest.pgc
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/dyntest.pgc)
dyntest2.pgc
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/dyntest2.pgc)
num_test.pgc
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/num_test.pgc)
perftest.pgc
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/perftest.pgc)
test1.pgc
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/test1.pgc)
test2.pgc
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/test2.pgc)
test3.pgc
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/test3.pgc)
test4.pgc
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/test4.pgc)
test5.pgc
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/test5.pgc)
test_code100.pgc
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/test_code100.pgc)
test_desc.pgc
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/test_desc.pgc)
test_func.pgc
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/test_func.pgc)
test_informix.pgc
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/test_informix.pgc)
test_informix2.pgc
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/test_informix2.pgc)
test_init.pgc
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/test_init.pgc)
test_notice.pgc
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/test_notice.pgc)
test_thread.pgc
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/test_thread.pgc)
test_thread_implicit.pgc
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/test_thread_implicit.pgc)
testdynalloc.pgc
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/testdynalloc.pgc)