remove event_log

src/main/config/es/fess_log.json

...in/java/org/codelibs/fess/es/log/bsbhv/BsEventLogBhv.java

...in/java/org/codelibs/fess/es/log/bsentity/BsEventLog.java

...org/codelibs/fess/es/log/bsentity/dbmeta/EventLogDbm.java

src/main/java/org/codelibs/fess/es/log/cbean/EventLogCB.java

.../java/org/codelibs/fess/es/log/cbean/bs/BsEventLogCB.java

...in/java/org/codelibs/fess/es/log/cbean/cq/EventLogCQ.java

...va/org/codelibs/fess/es/log/cbean/cq/bs/BsEventLogCQ.java

...main/java/org/codelibs/fess/es/log/exbhv/EventLogBhv.java

...main/java/org/codelibs/fess/es/log/exentity/EventLog.java

src/main/resources/esclient.xml

src/main/resources/fess_indices/fess_log/event_log.json