Reworked ARM Neon detection and remote plugins inclusion in the build

plugins/samplesource/CMakeLists.txt

@@ -4,9 +4,9 @@ add_subdirectory(fileinput)
 add_subdirectory(testsource)
 add_subdirectory(localinput)
 
-if(CM256CC_FOUND)
+if (CM256CC_FOUND AND (HAS_SSE3 OR HAS_NEON))
     add_subdirectory(remoteinput)
-endif(CM256CC_FOUND)
+endif()
 
 if(ENABLE_AIRSPY AND LIBAIRSPY_FOUND)
     add_subdirectory(airspy)

plugins/samplesource/remoteinput/CMakeLists.txt

@@ -1,10 +1,5 @@
 project(remoteinput)
 
-if (ARCHITECTURE_ARM64)
-    message(STATUS "Compiling RemoteInput for ARM64 with USE_NEON definition")
-    add_compile_definitions(USE_NEON)
-endif()
-
 set(remoteinput_SOURCES
     remoteinputbuffer.cpp
     remoteinputudphandler.cpp