redis: Remove no longer needed patch

packages/redis/no-tcsaflush.patch

@@ -1,21 +0,0 @@
-diff -uNr redis-4.0.11/deps/linenoise/linenoise.c redis-4.0.11.mod/deps/linenoise/linenoise.c
---- redis-4.0.11/deps/linenoise/linenoise.c	2018-08-04 01:44:56.000000000 +0300
-+++ redis-4.0.11.mod/deps/linenoise/linenoise.c	2018-08-28 18:48:44.778320660 +0300
-@@ -241,7 +241,7 @@
-     raw.c_cc[VMIN] = 1; raw.c_cc[VTIME] = 0; /* 1 byte, no timer */
- 
-     /* put terminal in raw mode after flushing */
--    if (tcsetattr(fd,TCSAFLUSH,&raw) < 0) goto fatal;
-+    if (tcsetattr(fd,TCSANOW,&raw) < 0) goto fatal;
-     rawmode = 1;
-     return 0;
- 
-@@ -252,7 +252,7 @@
- 
- static void disableRawMode(int fd) {
-     /* Don't even check the return value as it's too late. */
--    if (rawmode && tcsetattr(fd,TCSAFLUSH,&orig_termios) != -1)
-+    if (rawmode && tcsetattr(fd,TCSANOW,&orig_termios) != -1)
-         rawmode = 0;
- }
-