Don't save unstripped elf for debugging (#314)

The current save mechanism breaks when a user has deleted system32 from PATH environment variable. Comment out the copying so that it won't break for such users, but do not delete so that advanced users can use the unstripped elfs to debug.

Author: calvinatintel

platform.txt

@@ -70,9 +70,9 @@ recipe.ar.pattern="{compiler.path}{compiler.ar.cmd}" {compiler.ar.flags} {compil
 ## Combine gc-sections, archives, and objects
 recipe.c.combine.pattern="{compiler.path}{compiler.c.elf.cmd}" {compiler.c.elf.flags} "-T{build.variant.path}/{build.ldscript}" "-Wl,-Map,{build.path}/{build.project_name}.map" {compiler.c.elf.extra_flags} -o "{build.path}/{build.project_name}.elf" "-L{build.path}" "-L{build.variant.path}" -Wl,--whole-archive "-l{build.variant_system_lib}" -Wl,--no-whole-archive -Wl,--start-group "-l{build.variant_system_lib}" -lnsim -lc -lm -lgcc {object_files} "{build.path}/{archive_file}"
 
-## Save output with debug symbols (.debug.elf file)
-recipe.hooks.objcopy.preobjcopy.1.pattern=cp -f "{build.path}/{build.project_name}.elf" "{build.path}/../arduino101_sketch.debug.elf"
-recipe.hooks.objcopy.preobjcopy.1.pattern.windows=cmd /C copy /y "{build.path}\{build.project_name}.elf" "{build.path}\..\arduino101_sketch.debug.elf"
+## Save output with debug symbols (.debug.elf file). Uncomment if you wish to use OpenOCD to debug.
+#recipe.hooks.objcopy.preobjcopy.1.pattern=cp -f "{build.path}/{build.project_name}.elf" "{build.path}/../arduino101_sketch.debug.elf"
+#recipe.hooks.objcopy.preobjcopy.1.pattern.windows=cmd /C copy /y "{build.path}\{build.project_name}.elf" "{build.path}\..\arduino101_sketch.debug.elf"
 
 ## Create output (.bin file)
 recipe.objcopy.bin.pattern="{compiler.path}{compiler.elf2bin.cmd}" {compiler.elf2bin.flags} {compiler.elf2hex.extra_flags} "{build.path}/{build.project_name}.elf" "{build.path}/{build.project_name}.bin"