Errorlog filling with changed language setting and changed database context messages

On one of my servers, the ERRORLOG is filling with messages for "Changed language setting to..." and "Changed database context..." for every single connection.  They are generated for any kind of connection--such as Management Studio. How did this get turned on?  How do I suppress the messages in the errorlog?  This is the only server that's having the problem.

Example at the bottom.

SQL is: SQL 2008 R2 SP2 

Trace flags set on this server are 3226, 1118, 1117

Date,Source,Severity,Message
01/24/2014 11:23:14,spid65,Unknown,Changed language setting to us_english.
01/24/2014 11:23:14,spid65,Unknown,Changed database context to 'master'.
01/24/2014 11:23:14,spid64,Unknown,Changed language setting to us_english.
01/24/2014 11:23:14,spid64,Unknown,Changed database context to 'master'.
01/24/2014 11:23:13,spid64,Unknown,Changed language setting to us_english.
01/24/2014 11:23:13,spid64,Unknown,Changed database context to 'master'.
01/24/2014 11:23:13,spid55,Unknown,Changed language setting to us_english.
01/24/2014 11:23:13,spid55,Unknown,Changed database context to 'master'.
01/24/2014 11:23:11,spid55,Unknown,Changed language setting to us_english.
01/24/2014 11:23:11,spid55,Unknown,Changed database context to 'master'.
01/24/2014 11:23:05,spid61,Unknown,DBCC execution completed. If DBCC printed error messages<c/> contact your system administrator.
01/24/2014 11:23:05,spid61,Unknown,The error log has been reinitialized. See the previous log for older entries.
01/24/2014 11:23:05,spid61,Unknown,Logging SQL Server messages in file 'F:\SysDB\Program Files\Microsoft SQL Server\MSSQL10_50.ETL\MSSQL\Log\ERRORLOG'.
01/24/2014 11:23:05,spid61,Unknown,Authentication mode is MIXED.
01/24/2014 11:23:05,spid61,Unknown,System Manufacturer: 'HP'<c/> System Model: 'ProLiant DL580 G5'.
01/24/2014 11:23:05,spid61,Unknown,Server process ID is 20096.
01/24/2014 11:23:05,spid61,Unknown,All rights reserved.
01/24/2014 11:23:05,spid61,Unknown,(c) Microsoft Corporation.
01/24/2014 11:23:05,spid61,Unknown,Microsoft SQL Server 2008 R2 (SP2) - 10.50.4000.0 (X64) <nl/>Jun 28 2012 08:36:30 <nl/>Copyright (c) Microsoft Corporation<nl/>Developer Edition (64-bit) on Windows NT 6.1 <X64> (Build 7601: Service Pack 1)