dev: Remove a couple of deprecated namespaces

These namespaces have gone through the deprecation period
and can now be removed: Sinic, SCMI, Ps2, Regs, Keyboard,
Mouse, TxdOp, iGbReg, CopyEngineReg.

Change-Id: Icfaf458bffca2658650318508c0bb376719cf911
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/67370
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>

src/dev/arm/css/scmi_platform.hh

@@ -49,7 +49,6 @@ namespace gem5
 
 class Doorbell;
 
-GEM5_DEPRECATED_NAMESPACE(SCMI, scmi);
 namespace scmi
 {
 

src/dev/arm/css/scmi_protocols.hh

@@ -46,7 +46,6 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(SCMI, scmi);
 namespace scmi
 {
 

src/dev/net/i8254xGBe_defs.hh

@@ -35,7 +35,6 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(iGbReg, igbreg);
 namespace igbreg
 {
 
@@ -239,7 +238,6 @@ struct TxDesc
     uint64_t d2;
 };
 
-GEM5_DEPRECATED_NAMESPACE(TxdOp, txd_op);
 namespace txd_op
 {
 

src/dev/net/sinic.cc

@@ -48,7 +48,6 @@ namespace gem5
 
 using namespace networking;
 
-GEM5_DEPRECATED_NAMESPACE(Sinic, sinic);
 namespace sinic
 {
 

src/dev/net/sinic.hh

@@ -45,7 +45,6 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(Sinic, sinic);
 namespace sinic
 {
 

src/dev/net/sinicreg.hh

@@ -59,11 +59,9 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(Sinic, sinic);
 namespace sinic
 {
 
-GEM5_DEPRECATED_NAMESPACE(Regs, registers);
 namespace registers
 {
 

src/dev/pci/copy_engine_defs.hh

@@ -36,7 +36,6 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(CopyEngineReg, copy_engine_reg);
 namespace copy_engine_reg
 {
 

src/dev/ps2/types.cc

@@ -45,7 +45,6 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(Ps2, ps2);
 namespace ps2
 {
 

src/dev/ps2/types.hh

@@ -53,7 +53,6 @@
 namespace gem5
 {
 
-GEM5_DEPRECATED_NAMESPACE(Ps2, ps2);
 namespace ps2
 {
 
@@ -70,7 +69,6 @@ enum
     Reset              = 0xFF,
 };
 
-GEM5_DEPRECATED_NAMESPACE(Keyboard, keyboard);
 namespace keyboard
 {
 
@@ -93,7 +91,6 @@ extern const std::vector<uint8_t> ID;
 
 } // namespace keyboard
 
-GEM5_DEPRECATED_NAMESPACE(Mouse, mouse);
 namespace mouse
 {