Avoid index for single getToken() call

Change-Id: I907c108f4b056d3388464e29ce2fc40b319380c0
Reviewed-on: https://gerrit.libreoffice.org/67627
Tested-by: Jenkins
Reviewed-by: Matteo Casalin <matteo.casalin@yahoo.com>

stoc/source/implementationregistration/implreg.cxx

@@ -1362,8 +1362,7 @@ void ImplementationRegistration::prepareRegister(
 
     if (!implementationLoaderUrl.isEmpty())
     {
-        sal_Int32 nIndex = 0;
-        activatorName = implementationLoaderUrl.getToken(0, ':', nIndex );
+        activatorName = implementationLoaderUrl.getToken(0, ':');
     } else
     {
         // check locationUrl to find out what kind of loader is needed
@@ -1494,8 +1493,7 @@ Sequence< OUString > ImplementationRegistration::getImplementations(
 
     if (!implementationLoaderUrl.isEmpty())
     {
-        sal_Int32 nIndex = 0;
-        activatorName = implementationLoaderUrl.getToken(0, ':', nIndex );
+        activatorName = implementationLoaderUrl.getToken(0, ':');
     } else
     {
         // check locationUrl to find out what kind of loader is needed