[Minor] Remove unused option

CMakeLists.txt

@@ -569,9 +569,6 @@ LIST(APPEND RSPAMD_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES}")
 IF(HAVE_FETCH_H)
 	LIST(APPEND RSPAMD_REQUIRED_LIBRARIES fetch)
 ENDIF(HAVE_FETCH_H)
-IF(WITH_DB)
-	LIST(APPEND RSPAMD_REQUIRED_LIBRARIES db)
-ENDIF(WITH_DB)
 
 LIST(APPEND RSPAMD_REQUIRED_LIBRARIES "${LUA_LIBRARY}")
 LIST(APPEND RSPAMD_REQUIRED_LIBRARIES ucl)

config.h.in

@@ -105,7 +105,6 @@
 #cmakedefine HAVE_UCONTEXT_H     1
 #cmakedefine HAVE_UNISTD_H       1
 #cmakedefine PARAM_H_HAS_BITSET  1
-#cmakedefine WITH_DB             1
 #cmakedefine WITH_GPERF_TOOLS    1
 #cmakedefine WITH_HYPERSCAN      1
 #cmakedefine WITH_JEMALLOC       1