Merge namespace scopes in eval.c

The big deletion patch left some identical namespace scopes sitting
next to one another.  This patch removes the redundant "namespace
expr"s.

gdb/ChangeLog
2021-03-08  Tom Tromey  <tom@tromey.com>

	* eval.c: Merge "namespace" scopes.

1 files changed, 0 insertions, 10 deletions

diff --git a/gdb/eval.c b/gdb/eval.c
index 4c60223..3ea814f 100644
--- a/gdb/eval.c
+++ b/gdb/eval.c
@@ -2639,11 +2639,6 @@ unop_memval_type_operation::evaluate_for_address (struct expression *exp,
 		     std::get<1> (m_storage)->evaluate (nullptr, exp, noside));
 }
 
-}
-
-namespace expr
-{
-
 value *
 var_value_operation::evaluate_for_address (struct expression *exp,
 					   enum noside noside)
@@ -2826,11 +2821,6 @@ var_value_operation::evaluate_for_sizeof (struct expression *exp,
   return evaluate_subexp_for_sizeof_base (exp, type);
 }
 
-}
-
-namespace expr
-{
-
 value *
 var_msym_value_operation::evaluate_for_cast (struct type *to_type,
 					     struct expression *exp,