Remove Office 365 federation from ADFS server
1. Check federation status
PS C:\Users\administrator> Get-MsolDomain | fl name,status,auth*
Name : mfalab3.com
Status : Verified
Authentication : Federated
2. From ADFS server, run following Powershell commands
Set-MsolADFSContext -Computer th-adfs2012
Set-MsolDomainAuthentication -Authentication Managed -DomainName mfalab3.com
Get-MsolDomain | fl name,status,auth*
(Note : th-adfs2012 : adfs server, mfalab3.com : test domain name)
3. Check federation status again
PS C:\Users\administrator> Get-MsolDomain | fl name,status,auth*
Name : mfalab3.com
Status : Verified
Authentication : Managed
4. Login to Office 365 to check if it is not redirected to ADFS server