Add board section under 3dprinter

Author: Karl Andersson

boards.txt

@@ -773,10 +773,6 @@ Disco.menu.usb.HID.build.enable_usb={build.usb_flags} -DUSBD_USE_HID_COMPOSITE
 #Disco.menu.usb.CDC=CDC (if available)
 #Disco.menu.usb.CDC.build.enable_usb={build.usb_flags} -DUSBD_USE_CDC -DUSE_USB_FS
 
-#Armed.menu.usb.enable_USB=None
-#Armed.menu.usb.CDC=CDC (if available)
-#Armed.menu.usb.CDC.build.enable_usb={build.usb_flags} -DUSBD_USE_CDC -DUSE_USB_FS
-
 # Optimizations
 Nucleo_144.menu.opt.osstd=Smallest (-Os default)
 Nucleo_144.menu.opt.oslto=Smallest (-Os) with LTO
@@ -1012,16 +1008,6 @@ Maple.menu.rtlib.nanofps.build.flags.ldspecs=--specs=nano.specs -u _printf_float
 Maple.menu.rtlib.full=Newlib Standard
 Maple.menu.rtlib.full.build.flags.ldspecs=
 
-Armed.menu.rtlib.nano=Newlib Nano (default)
-Armed.menu.rtlib.nanofp=Newlib Nano + Float Printf
-Armed.menu.rtlib.nanofp.build.flags.ldspecs=--specs=nano.specs -u _printf_float
-Armed.menu.rtlib.nanofs=Newlib Nano + Float Scanf
-Armed.menu.rtlib.nanofs.build.flags.ldspecs=--specs=nano.specs -u _scanf_float
-Armed.menu.rtlib.nanofps=Newlib Nano + Float Printf/Scanf
-Armed.menu.rtlib.nanofps.build.flags.ldspecs=--specs=nano.specs -u _printf_float -u _scanf_float
-Armed.menu.rtlib.full=Newlib Standard
-Armed.menu.rtlib.full.build.flags.ldspecs=
-
 RAK.menu.rtlib.nano=Newlib Nano (default)
 RAK.menu.rtlib.nanofp=Newlib Nano + Float Printf
 RAK.menu.rtlib.nanofp.build.flags.ldspecs=--specs=nano.specs -u _printf_float