unix/variants: Enable remaining options on dev,coverage from ROM extra.

So that the default configuration for the dev and coverage variants
includes all options set by MICROPY_CONFIG_ROM_LEVEL_EXTRA_FEATURES.

Note that enabling MICROPY_PY_SYS_STDIO_BUFFER on unix doesn't do anything
because unix doesn't use shared/runtime/sys_stdio_mphal.c.

Signed-off-by: Damien George <damien@micropython.org>

ports/unix/variants/coverage/mpconfigvariant.h

@@ -30,10 +30,6 @@
 // Set base feature level.
 #define MICROPY_CONFIG_ROM_LEVEL (MICROPY_CONFIG_ROM_LEVEL_EXTRA_FEATURES)
 
-// Disable some features that come enabled by default with the feature level.
-#define MICROPY_PY_BUILTINS_EXECFILE            (0)
-#define MICROPY_PY_SYS_STDIO_BUFFER             (0)
-
 // Enable additional features.
 #define MICROPY_DEBUG_PARSE_RULE_NAME  (1)
 #define MICROPY_TRACKED_ALLOC           (1)

ports/unix/variants/dev/mpconfigvariant.h

@@ -27,10 +27,6 @@
 // Set base feature level.
 #define MICROPY_CONFIG_ROM_LEVEL (MICROPY_CONFIG_ROM_LEVEL_EXTRA_FEATURES)
 
-// Disable some features that come enabled by default with the feature level.
-#define MICROPY_PY_BUILTINS_EXECFILE            (0)
-#define MICROPY_PY_SYS_STDIO_BUFFER             (0)
-
 // Enable some additional features.
 #define MICROPY_REPL_EMACS_WORDS_MOVE           (1)
 #define MICROPY_REPL_EMACS_EXTRA_WORDS_MOVE     (1)