Cellular: Remove target files inheriting from AT_CellularNetwork

After AT_CellularNetwork::has_registration was replaced with
CellularProperties and better
AT_CellularNetwork::set_access_technology_impl default
implementation we can delete most of the target specific classes
that inherit AT_CellularNetwork.

Author: Teppo Järvelin

UNITTESTS/features/cellular/framework/AT/at_cellularnetwork/at_cellularnetworktest.cpp

@@ -472,8 +472,8 @@ TEST_F(TestAT_CellularNetwork, test_AT_CellularNetwork_scan_plmn)
     ATHandler_stub::bool_value = false;
     EXPECT_TRUE(NSAPI_ERROR_UNSUPPORTED == cn.set_access_technology(CellularNetwork::RAT_UTRAN));
     EXPECT_TRUE(NSAPI_ERROR_OK == cn.scan_plmn(ops, c));
-    EXPECT_TRUE(c == 0);
-    EXPECT_TRUE(ops.get_head() == NULL);
+    EXPECT_TRUE(c == 1);
+    EXPECT_TRUE(ops.get_head() != NULL);
 }
 
 TEST_F(TestAT_CellularNetwork, test_AT_CellularNetwork_set_ciot_optimization_config)

features/cellular/framework/AT/AT_CellularNetwork.cpp

@@ -375,6 +375,7 @@ nsapi_error_t AT_CellularNetwork::detach()
 
 nsapi_error_t AT_CellularNetwork::set_access_technology_impl(RadioAccessTechnology opsAct)
 {
+    _op_act = RAT_UNKNOWN;
     return NSAPI_ERROR_UNSUPPORTED;
 }
 

features/cellular/framework/targets/GEMALTO/CINTERION/GEMALTO_CINTERION.cpp

@@ -15,13 +15,12 @@
  * limitations under the License.
  */
 
-#include "GEMALTO_CINTERION_CellularNetwork.h"
 #include "GEMALTO_CINTERION_CellularContext.h"
 #include "GEMALTO_CINTERION.h"
+#include "AT_CellularNetwork.h"
 #include "AT_CellularInformation.h"
 #include "CellularLog.h"
 
-
 using namespace mbed;
 using namespace events;
 
@@ -37,11 +36,6 @@ GEMALTO_CINTERION::~GEMALTO_CINTERION()
 {
 }
 
-AT_CellularNetwork *GEMALTO_CINTERION::open_network_impl(ATHandler &at)
-{
-    return new GEMALTO_CINTERION_CellularNetwork(at);
-}
-
 AT_CellularContext *GEMALTO_CINTERION::create_context_impl(ATHandler &at, const char *apn)
 {
     return new GEMALTO_CINTERION_CellularContext(at, this, apn);

features/cellular/framework/targets/GEMALTO/CINTERION/GEMALTO_CINTERION.h

@@ -40,7 +40,6 @@ class GEMALTO_CINTERION : public AT_CellularDevice {
     static Module get_module();
 
 protected: // AT_CellularDevice
-    virtual AT_CellularNetwork *open_network_impl(ATHandler &at);
     virtual AT_CellularContext *create_context_impl(ATHandler &at, const char *apn);
 protected:
     virtual uint16_t get_send_delay() const;

features/cellular/framework/targets/GEMALTO/CINTERION/GEMALTO_CINTERION_CellularNetwork.cpp

@@ -16,9 +16,9 @@
  */
 
 #include "QUECTEL_UG96.h"
-#include "QUECTEL_UG96_CellularNetwork.h"
 #include "QUECTEL_UG96_CellularPower.h"
 #include "QUECTEL_UG96_CellularContext.h"
+#include "AT_CellularNetwork.h"
 
 using namespace mbed;
 using namespace events;
@@ -45,11 +45,6 @@ QUECTEL_UG96::~QUECTEL_UG96()
 {
 }
 
-AT_CellularNetwork *QUECTEL_UG96::open_network_impl(ATHandler &at)
-{
-    return new QUECTEL_UG96_CellularNetwork(at);
-}
-
 AT_CellularPower *QUECTEL_UG96::open_power_impl(ATHandler &at)
 {
     return new QUECTEL_UG96_CellularPower(at);

features/cellular/framework/targets/GEMALTO/CINTERION/GEMALTO_CINTERION_CellularNetwork.h

@@ -36,13 +36,11 @@ class QUECTEL_UG96 : public AT_CellularDevice {
     virtual ~QUECTEL_UG96();
 
 protected: // AT_CellularDevice
-    virtual AT_CellularNetwork *open_network_impl(ATHandler &at);
     virtual AT_CellularPower *open_power_impl(ATHandler &at);
     virtual AT_CellularContext *create_context_impl(ATHandler &at, const char *apn);
 
 public: // NetworkInterface
     void handle_urc(FileHandle *fh);
-
 };
 
 } // namespace mbed