crt: Remove a duplicate crt0_w.o from libmingw32.a

Signed-off-by: Martin Storsjö <martin@martin.st>

mingw-w64-crt/Makefile.am

diff --git a/mingw-w64-crt/Makefile.am b/mingw-w64-crt/Makefile.am
index 2d33e1a..78d9a0a 100644
--- a/mingw-w64-crt/Makefile.am
+++ b/mingw-w64-crt/Makefile.am
@@ -119,7 +119,7 @@
 src_libmingw32=include/oscalls.h include/internal.h include/sect_attribs.h \
   crt/crt0_c.c        crt/dll_argv.c  crt/gccmain.c     crt/natstart.c  crt/pseudo-reloc-list.c  crt/wildcard.c \
   crt/charmax.c       crt/crt0_w.c         crt/dllargv.c   crt/_newmode.c  crt/tlssup.c             crt/xncommod.c \
-  crt/cinitexe.c      crt/crt0_w.c         crt/merr.c      crt/pesect.c      crt/udllargc.c  crt/xthdloc.c            crt/CRT_fp10.c \
+  crt/cinitexe.c      crt/merr.c      crt/pesect.c      crt/udllargc.c  crt/xthdloc.c            crt/CRT_fp10.c \
   crt/mingw_custom.c  crt/mingw_helpers.c  \
   crt/pseudo-reloc.c  crt/udll_argv.c      \
   crt/usermatherr.c   \