busybox: remove awk -F patch

The awk patch being carried by meta-virtualization is part of the
1.21.1 busybox release. So we can drop it from the bbappend.

Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>

recipes-core/busybox/busybox_1.21.1/busybox-awk-make--F-STR-interpret-escape.patch

@@ -1,90 +0,0 @@
-From ea664dde87d8e52df7d4003d988352a66562a945 Mon Sep 17 00:00:00 2001
-From: Denys Vlasenko <vda.linux@googlemail.com>
-Date: Fri, 22 Jun 2012 16:41:01 +0000
-Subject: awk: make -F STR interpret escape sequences. Closes 5126
-
-Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
----
-diff --git a/editors/awk.c b/editors/awk.c
-index 71abca2..d69720d 100644
---- a/editors/awk.c
-+++ b/editors/awk.c
-@@ -696,6 +696,10 @@ static char nextchar(char **s)
- 	pps = *s;
- 	if (c == '\\')
- 		c = bb_process_escape_sequence((const char**)s);
-+	/* Example awk statement:
-+	 * s = "abc\"def"
-+	 * we must treat \" as "
-+	 */
- 	if (c == '\\' && *s == pps) { /* unrecognized \z? */
- 		c = *(*s); /* yes, fetch z */
- 		if (c)
-@@ -704,6 +708,15 @@ static char nextchar(char **s)
- 	return c;
- }
- 
-+/* TODO: merge with strcpy_and_process_escape_sequences()?
-+ */
-+static void unescape_string_in_place(char *s1)
-+{
-+	char *s = s1;
-+	while ((*s1 = nextchar(&s)) != '\0')
-+		s1++;
-+}
-+
- static ALWAYS_INLINE int isalnum_(int c)
- {
- 	return (isalnum(c) || c == '_');
-@@ -2992,7 +3005,7 @@ static int awk_exit(int r)
-  * otherwise return 0 */
- static int is_assignment(const char *expr)
- {
--	char *exprc, *val, *s, *s1;
-+	char *exprc, *val;
- 
- 	if (!isalnum_(*expr) || (val = strchr(expr, '=')) == NULL) {
- 		return FALSE;
-@@ -3002,10 +3015,7 @@ static int is_assignment(const char *expr)
- 	val = exprc + (val - expr);
- 	*val++ = '\0';
- 
--	s = s1 = val;
--	while ((*s1 = nextchar(&s)) != '\0')
--		s1++;
--
-+	unescape_string_in_place(val);
- 	setvar_u(newvar(exprc), val);
- 	free(exprc);
- 	return TRUE;
-@@ -3118,8 +3128,10 @@ int awk_main(int argc, char **argv)
- 	opt = getopt32(argv, "F:v:f:W:", &opt_F, &list_v, &list_f, NULL);
- 	argv += optind;
- 	argc -= optind;
--	if (opt & 0x1)
--		setvar_s(intvar[FS], opt_F); // -F
-+	if (opt & 0x1) { /* -F */
-+		unescape_string_in_place(opt_F);
-+		setvar_s(intvar[FS], opt_F);
-+	}
- 	while (list_v) { /* -v */
- 		if (!is_assignment(llist_pop(&list_v)))
- 			bb_show_usage();
-diff --git a/testsuite/awk.tests b/testsuite/awk.tests
-index e671907..d4c390d 100755
---- a/testsuite/awk.tests
-+++ b/testsuite/awk.tests
-@@ -43,6 +43,11 @@ testing "awk long field sep" "awk -F-- '{ print NF, length(\$NF), \$NF }'" \
- 	"" \
- 	"a--\na--b--\na--b--c--\na--b--c--d--"
- 
-+testing "awk -F handles escapes" "awk -F'\\x21' '{print \$1}'" \
-+	"a\n" \
-+	"" \
-+	"a!b\n"
-+
- # '@(samp|code|file)\{' is an invalid extended regex (unmatched '{'),
- # but gawk 3.1.5 does not bail out on it.
- testing "awk gsub falls back to non-extended-regex" \
---
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