Removed duplicate Ctrl+C-Handling from term.read

The event library already takes care about that. (returning an "interrupted" event)
I noticed that because I couldn't exit command lines reliably. (The Ctrl+C-Handling in the event library replaces some events.)

src/main/resources/assets/opencomputers/loot/OpenOS/lib/term.lua

@@ -357,9 +357,6 @@ function term.read(history, dobreak, hint, pwchar, filter)
         history[#history] = ""
         return true, nil
       end
-    elseif keyboard.isControlDown() and code == keyboard.keys.c then
-      history[#history] = ""
-      return true, nil
     elseif not keyboard.isControl(char) then
       insert(unicode.char(char))
     end
@@ -402,6 +399,10 @@ function term.read(history, dobreak, hint, pwchar, filter)
       cleanup()
       error("interrupted", 0)
     end
+    if name == "interrupted" then
+      cleanup()
+      return nil
+    end
     local ncx, ncy = getCursor()
     if ocx ~= ncx or ocy ~= ncy then
       cleanup()