chore(project-template): remove ADAPTER=EPICS7IOC option

The version of EPICS (3 or 7) is now defined by which EPICS version is
used by the found adapter. There are no distinct names any more, also
EPCIS3 is effectively phasing out.

cmake/set_control_system_adapter.cmake

@@ -41,11 +41,6 @@ elseif(ADAPTER STREQUAL "EPICSIOC")
   find_package(ChimeraTK-ControlSystemAdapter-EPICS-IOC-Adapter 02.01 REQUIRED)
   set_target_properties(ChimeraTK::ChimeraTK-ControlSystemAdapter-EPICS-IOC-Adapter PROPERTIES IMPORTED_GLOBAL TRUE)
   add_library(ChimeraTK::SelectedAdapter ALIAS ChimeraTK::ChimeraTK-ControlSystemAdapter-EPICS-IOC-Adapter)
-elseif(ADAPTER STREQUAL "EPICS7IOC")
-  message("Building against the EPICS ver. 7.0 IOC ControlSystemAdater")
-  find_package(ChimeraTK-ControlSystemAdapter-EPICS7-IOC-Adapter 02.01 REQUIRED)
-  set_target_properties(ChimeraTK::ChimeraTK-ControlSystemAdapter-EPICS7-IOC-Adapter PROPERTIES IMPORTED_GLOBAL TRUE)
-  add_library(ChimeraTK::SelectedAdapter ALIAS ChimeraTK::ChimeraTK-ControlSystemAdapter-EPICS7-IOC-Adapter)
 elseif(ADAPTER STREQUAL "TANGO")
   message("Building against the Tango ControlSystemAdater")
   find_package(ChimeraTK-ControlSystemAdapter-TangoAdapter 01.00 REQUIRED)
@@ -55,7 +50,6 @@ else()
   message(FATAL_ERROR "Please select your ControlSystemAdapter to use by passing to the cmake command line:\n"
                       "   -DADAPTER=DOOCS to build a DOOCS server\n"
                       "   -DADAPTER=OPCUA to build an OPC UA server\n"
-                      "   -DADAPTER=EPICSIOC to build an EPICS ver. 3.16 IOC\n"
-                      "   -DADAPTER=EPICS7IOC to build an EPICS ver. 7.0 IOC\n"
+                      "   -DADAPTER=EPICSIOC to build an EPICS IOC\n"
                       "   -DADAPTER=TANGO to build a Tango device server")
 endif()