Remove excess blank lines after namespace

Change-Id: I4e4f83017f2bfc2cf842c4c971ed4b05e0447e6a
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

tests/manual/debugger/simple/simple_test_app.cpp

@@ -2511,7 +2511,6 @@ namespace qset {
 
 namespace qsharedpointer {
 
-
     class EmployeeData : public QSharedData
     {
     public:
@@ -5008,7 +5007,6 @@ QString fooxx()
 
 namespace basic {
 
-
     struct Empty {};
     struct Data { Data() : a(42) {} int a; };
     struct VEmpty {};