Drop ifdef guard to fix a build failure with MSVC
Drop ifdef guard to fix a build failure with MSVC

We added the ifdef guard in d5b9cbb because MSVC was
smart enough to find that the return statement could
not be reached; this method has been modified in OCCT
6.6.0 and now the return statement is needed.

This commit fix issue #389.

EvgeneOskin/oce,Tridify/oce,EvgeneOskin/oce,heartvalve/oce,tpaviot/oce,Tech-XCorp/oce,Tech-XCorp/oce,EvgeneOskin/oce,finetjul/oce,heartvalve/oce,heartvalve/oce,finetjul/oce,mathstuf/oce,BenoitPerrot/oce,Tridify/oce,Tridify/oce,mathstuf/oce,Tridify/oce,heartvalve/oce,tpaviot/oce,heartvalve/oce,tpaviot/oce,tpaviot/oce,EvgeneOskin/oce,mathstuf/oce,Tech-XCorp/oce,tpaviot/oce,finetjul/oce,BenoitPerrot/oce,BenoitPerrot/oce,Tech-XCorp/oce,BenoitPerrot/oce,finetjul/oce,Tridify/oce,mathstuf/oce,mathstuf/oce,Tech-XCorp/oce,finetjul/oce,EvgeneOskin/oce,BenoitPerrot/oce