Revert "mtr: remove not_valgrind_build"

The original code is correct.

valgrind and asan binaries should be built with a specialiced version of
mem_root that makes it easier to find memory overwrites.
This is what the BUILD scripts is doing.

The specialiced mem_root code allocates a new block for every allocation
which is visiable for any test that depenmds on the default original malloc
size and usage.

mysql-test/include/not_valgrind_build.inc

+if (`select version() like '%valgrind%' || version() like '%asan%'`)
+{
+  skip Does not run with binaries built with valgrind or asan;
+}

mysql-test/main/sp-no-valgrind.test

 --source include/not_msan.inc
---source include/not_valgrind.inc
+--source include/not_valgrind_build.inc
 
 --echo # MDEV-20699 do not cache SP in SHOW CREATE
 --echo # Warmup round, this might allocate some memory for session variable