Bug 334306 useless null check in nsDestroyJSPrincipals

r=dbaron sr=dveditz a=mtschrep

caps/src/nsJSPrincipals.cpp

@@ -94,7 +94,6 @@ nsDestroyJSPrincipals(JSContext *cx, struct JSPrincipals *jsprin)
 #else
     nsjsprin->refcount++;
 #endif
-    if (nsjsprin->nsIPrincipalPtr)
     nsjsprin->nsIPrincipalPtr->Release();
     // The nsIPrincipal that we release owns the JSPrincipal struct,
     // so we don't need to worry about "codebase"