Remove trailing whitespace from several files

No real changes.

See https://github.com/wxWidgets/wxWidgets/pull/787

include/wx/any.h

@@ -317,7 +317,7 @@ public:
         return Ops::GetValue(buf);
     }
 #if wxUSE_EXTENDED_RTTI
-    virtual const wxTypeInfo* GetTypeInfo() const 
+    virtual const wxTypeInfo* GetTypeInfo() const
     {
         return wxGetTypeInfo((T*)NULL);
     }
@@ -377,7 +377,7 @@ public: \
         const UseDataType* sptr = \
             reinterpret_cast<const UseDataType*>(voidPtr); \
         return static_cast<T>(*sptr); \
-    } 
+    }
 
 #if wxUSE_EXTENDED_RTTI
 #define WX_ANY_DEFINE_SUB_TYPE(T, CLSTYPE) \