devel/py-game: try to unbreak the port's build on i386

It is fairly safe to assume that 32-bit x86 CPUs people
still use for gaming these days support SSE2, like this
Pentium M 780 of mine.  While here, drop confusing `-r'
argument from rm(1) when removing a regular file.

Author: Alexey Dokuchaev

devel/py-game/Makefile

@@ -13,8 +13,6 @@ WWW=		https://www.pygame.org/news
 LICENSE=	LGPL21
 LICENSE_FILE=	${WRKSRC}/docs/LGPL.txt
 
-BROKEN_i386=	error: always_inline function '_mm_set_epi32' requires target feature 'sse2'
-
 BUILD_DEPENDS=	v4l_compat>0:multimedia/v4l_compat
 LIB_DEPENDS=	libfreetype.so:print/freetype2 \
 		libpng.so:graphics/png
@@ -26,6 +24,8 @@ USE_SDL=	sdl2 ttf2 image2 mixer2
 USE_PYTHON=	autoplist distutils
 USE_XORG=	x11
 
+CFLAGS_i386=	-msse2 # src_c/image.c:319:12: error: always_inline function '_mm_set_epi32' requires target feature 'sse2'
+
 SDLNOX11=	sdl-nox11-[0-9]*
 
 DOCSDIR=	${PREFIX}/share/doc/py-${PORTNAME}
@@ -37,7 +37,7 @@ PORTDOCS=	*
 PORTEXAMPLES=	*
 
 post-extract:
-	@${RM} -r ${WRKSRC}/examples/.editorconfig
+	@${RM} ${WRKSRC}/examples/.editorconfig
 
 post-install-EXAMPLES-on:
 	@${MKDIR} ${STAGEDIR}${EXAMPLESDIR}