Thank you zborowskib,
I want to remove the SOE because they duplicated. First I remove them from extensions page but they have not been removed. Then I try to remove node in <Server_home>/bin/ServerTypesExt.dat file, as you suggest, those SOEs have gone.
The nodes that I deleted, (2 nodes <ExtensionType file="PCHprintSOE.soe">)
<ExtensionType file="PCHprintSOE.soe">
<Name>PCHPrintSOEv101</Name>
<DisplayName>PCHPrintSOEv101</DisplayName>
<CLSID>lu.etat.pch.gis.soe.print.PCHPrintSOEv101</CLSID>
<Description>PCHPrintSOE for 10.1</Description>
<MaxUploadFileSize>-1</MaxUploadFileSize>
<AllowedUploadFileTypes/>
<Properties/>
<Info>
<SupportsREST>true</SupportsREST>
<hasManagerPropertiesConfigurationPane>false</hasManagerPropertiesConfigurationPane>
<SupportsSOAP>false</SupportsSOAP>
<AllWebCapabilities/>
<DefaultWebCapabilities/>
</Info>
<Resources>
<WSDL/>
</Resources>
</ExtensionType>
<ExtensionType file="PCHprintSOE.soe">
<Name>VirtualDirSOE</Name>
<DisplayName>VirtualDirSOE</DisplayName>
<CLSID>lu.etat.pch.gis.soe.VirtualDirSOE</CLSID>
<Description>VirtualDirSOE for 10.1</Description>
<MaxUploadFileSize>-1</MaxUploadFileSize>
<AllowedUploadFileTypes/>
<Properties/>
<Info>
<SupportsREST>true</SupportsREST>
<hasManagerPropertiesConfigurationPane>false</hasManagerPropertiesConfigurationPane>
<SupportsSOAP>false</SupportsSOAP>
<AllWebCapabilities/>
<DefaultWebCapabilities/>
</Info>
<Resources>
<WSDL/>
</Resources>
</ExtensionType>