Removed unnecessary dependency on RTEMS_Test_Support which existed

in the RTEMS Ada implementation but does not exist in this binding.

c/src/ada-tests/sptests/sp25/sptest.adb

@@ -23,7 +23,6 @@
 
 with INTERFACES; use INTERFACES;
 with RTEMS;
-with RTEMS_TEST_SUPPORT;
 with TEST_SUPPORT;
 with TEXT_IO;
 with UNSIGNED32_IO;