BASIC : no need to initialize manually std::unique_ptr

Change-Id: I7e4780d41dd43383820cc3ae4ce5cfba24a53b7f
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/99942
Tested-by: Jenkins
Reviewed-by: Michael Stahl <michael.stahl@cib.de>

basic/source/classes/sbintern.cxx

@@ -33,10 +33,6 @@ SbiGlobals* GetSbData()
 SbiGlobals::SbiGlobals()
 {
     pInst = nullptr;
-    pTypeFac = nullptr;
-    pClassFac = nullptr;
-    pOLEFac = nullptr;
-    pFormFac = nullptr;
     pMod = nullptr;
     pCompMod = nullptr; // JSM
     nInst = 0;