boost: Drop bbappend

This issue is fixed differently and patched in oe-core

Signed-off-by: Khem Raj <raj.khem@gmail.com>

recipes-support/boost/boost/riscv32__NR_futex.patch

@@ -1,13 +0,0 @@
---- a/libs/log/src/event.cpp
-+++ b/libs/log/src/event.cpp
-@@ -31,6 +31,10 @@
- #include <linux/futex.h>
- #include <boost/memory_order.hpp>
- 
-+#if !defined(__NR_futex) && defined(__riscv) && __riscv_xlen == 32
-+# define __NR_futex __NR_futex_time64
-+#endif
-+
- // Some Android NDKs (Google NDK and older Crystax.NET NDK versions) don't define SYS_futex
- #if defined(SYS_futex)
- #define BOOST_LOG_SYS_FUTEX SYS_futex

recipes-support/boost/boost_%.bbappend

@@ -1,3 +0,0 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
-
-SRC_URI_append_riscv32 = " file://riscv32__NR_futex.patch"