base: Remove the Stats namespace

This namespace has gone through the deprecation period
and can now be removed.

Change-Id: I80f25af68e03fff3df8316cb4d1d2669687d0fe4
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/67359
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>

src/base/statistics.cc

@@ -53,7 +53,6 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(Stats, statistics);
 namespace statistics
 {
 

src/base/statistics.hh

@@ -91,7 +91,6 @@ namespace gem5
 {
 
 /* A namespace for all of the Statistics */
-GEM5_DEPRECATED_NAMESPACE(Stats, statistics);
 namespace statistics
 {
 

src/base/stats/group.cc

@@ -47,7 +47,6 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(Stats, statistics);
 namespace statistics
 {
 

src/base/stats/group.hh

@@ -74,7 +74,6 @@ namespace gem5
 
 #define ADD_STAT(n, ...) n(this, #n, __VA_ARGS__)
 
-GEM5_DEPRECATED_NAMESPACE(Stats, statistics);
 namespace statistics
 {
 

src/base/stats/group.test.cc

@@ -255,10 +255,10 @@ TEST(StatsGroupTest, ConstructTwoLevelsUnbalancedTree)
     ASSERT_EQ(node2_2.getStatGroups().size(), 0);
 }
 
-class DummyInfo : public Stats::Info
+class DummyInfo : public statistics::Info
 {
   public:
-    using Stats::Info::Info;
+    using statistics::Info::Info;
 
     int value = 0;
 
@@ -266,7 +266,7 @@ class DummyInfo : public Stats::Info
     void prepare() override {}
     void reset() override { value = 0; }
     bool zero() const override { return false; }
-    void visit(Stats::Output &visitor) override {}
+    void visit(statistics::Output &visitor) override {}
 };
 
 /** Test adding stats to a group. */

src/base/stats/hdf5.cc

@@ -59,7 +59,6 @@ bool emptyStrings(const T &labels)
 }
 
 
-GEM5_DEPRECATED_NAMESPACE(Stats, statistics);
 namespace statistics
 {
 

src/base/stats/hdf5.hh

@@ -53,7 +53,6 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(Stats, statistics);
 namespace statistics
 {
 

src/base/stats/info.cc

@@ -52,7 +52,6 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(Stats, statistics);
 namespace statistics
 {
 

src/base/stats/info.hh

@@ -43,7 +43,6 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(Stats, statistics);
 namespace statistics
 {
 

src/base/stats/output.hh

@@ -49,7 +49,6 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(Stats, statistics);
 namespace statistics
 {
 

src/base/stats/storage.cc

@@ -46,7 +46,6 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(Stats, statistics);
 namespace statistics
 {
 

src/base/stats/storage.hh

@@ -42,7 +42,6 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(Stats, statistics);
 namespace statistics
 {
 

src/base/stats/text.cc

@@ -67,7 +67,6 @@ constexpr auto Nan = std::numeric_limits<float>::quiet_NaN();
 
 } // anonymous namespace
 
-GEM5_DEPRECATED_NAMESPACE(Stats, statistics);
 namespace statistics
 {
 

src/base/stats/text.hh

@@ -53,7 +53,6 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(Stats, statistics);
 namespace statistics
 {
 

src/base/stats/types.hh

@@ -39,7 +39,6 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(Stats, statistics);
 namespace statistics
 {
 

src/base/stats/units.hh

@@ -75,7 +75,6 @@ namespace gem5
         UNIT_UNSPECIFIED, statistics::units::Unspecified::get(), \
         "Use statistics::units::Unspecified::get()")
 
-GEM5_DEPRECATED_NAMESPACE(Stats, statistics);
 namespace statistics
 {
 

src/python/pybind11/stats.cc

@@ -83,7 +83,6 @@ cast_stat_info(const statistics::Info *info)
 #undef TRY_CAST
 }
 
-GEM5_DEPRECATED_NAMESPACE(Stats, statistics);
 namespace statistics
 {
 

src/sim/power/mathexpr_powermodel.hh

@@ -47,7 +47,6 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(Stats, statistics);
 namespace statistics
 {
     class Info;

src/sim/stat_control.cc

@@ -57,7 +57,6 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(Stats, statistics);
 namespace statistics
 {
 

src/sim/stat_control.hh

@@ -48,7 +48,6 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(Stats, statistics);
 namespace statistics
 {
 

src/sim/stat_register.cc

@@ -42,7 +42,6 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(Stats, statistics);
 namespace statistics
 {
 

src/sim/stat_register.hh

@@ -47,7 +47,6 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(Stats, statistics);
 namespace statistics
 {