KNOX-2618 - INFO level logging added about removing expired tokens from the DB

[smolnar82]

What changes were proposed in this pull request?

Instead of logging the number of expired tokens removed from the DB at DEBUG level, Knox logs the

How was this patch tested?

Tested manually:

2021-06-08 12:45:54,837 INFO  service.knoxtoken (TokenResource.java:getAuthenticationToken(570)) - Knox Token service (homepage) issued token eyJqa3...sHsZgg (ab56217a...aa2afedee2bc)
2021-06-08 12:45:56,445 INFO  service.knoxtoken (TokenResource.java:getAuthenticationToken(570)) - Knox Token service (homepage) issued token eyJqa3...qC7Kag (99212174...e50a90ccffa5)
2021-06-08 12:45:57,793 INFO  service.knoxtoken (TokenResource.java:getAuthenticationToken(570)) - Knox Token service (homepage) issued token eyJqa3...WG117A (9bf33980...be4eb1ac08dc)
2021-06-08 12:45:58,925 INFO  service.knoxtoken (TokenResource.java:getAuthenticationToken(570)) - Knox Token service (homepage) issued token eyJqa3...RC_BwQ (895a34a8...69d0574a7324)
2021-06-08 12:45:59,887 INFO  service.knoxtoken (TokenResource.java:getAuthenticationToken(570)) - Knox Token service (homepage) issued token eyJqa3...qZUNtw (65bf1dfa...b52853a1053f)
2021-06-08 12:46:00,754 INFO  service.knoxtoken (TokenResource.java:getAuthenticationToken(570)) - Knox Token service (homepage) issued token eyJqa3...RnkKRA (3a7824b7...a37942c02ce9)
...
2021-06-08 12:47:09,483 INFO  token.state (JDBCTokenStateService.java:evictExpiredTokens(218)) - Removing 6 expired token(s) from the database: 895a34a8...69d0574a7324, ab56217a...aa2afedee2bc, 3a7824b7...a37942c02ce9, 65bf1dfa...b52853a1053f, 99212174...e50a90ccffa5, 9bf33980...be4eb1ac08dc
2021-06-08 12:47:09,491 INFO  token.state (DefaultTokenStateService.java:getExpiredTokens(372)) - Evicting expired token 3a7824b7...a37942c02ce9
2021-06-08 12:47:09,492 INFO  token.state (DefaultTokenStateService.java:getExpiredTokens(372)) - Evicting expired token 895a34a8...69d0574a7324
2021-06-08 12:47:09,492 INFO  token.state (DefaultTokenStateService.java:getExpiredTokens(372)) - Evicting expired token ab56217a...aa2afedee2bc
2021-06-08 12:47:09,492 INFO  token.state (DefaultTokenStateService.java:getExpiredTokens(372)) - Evicting expired token 99212174...e50a90ccffa5
2021-06-08 12:47:09,492 INFO  token.state (DefaultTokenStateService.java:getExpiredTokens(372)) - Evicting expired token 9bf33980...be4eb1ac08dc
2021-06-08 12:47:09,492 INFO  token.state (DefaultTokenStateService.java:getExpiredTokens(372)) - Evicting expired token 65bf1dfa...b52853a1053f