Drop the LDFLAGS="-Wl,--no-as-needed" workaround when BZ#1827338 is worked out

[mrc0mmand]

dfe84a2 disabled the clang sanitizers job, since the latest LLVM/clang (10.0.x) breaks the sanitizers run in a pretty interesting way (see BZ#1827338). As gcc 10.0.x doesn't suffer from this issue, let's use that in the meantime.

[mrc0mmand]

Also see #248.

[mrc0mmand]

Oh well, ASan in gcc 10.1.0 picked up the issue as well:

[root@bbd28b3fbe6e /]# gcc -fsanitize=address -o main main.c
[root@bbd28b3fbe6e /]# ./main 
AddressSanitizer:DEADLYSIGNAL
=================================================================
==1282==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x000000000000 bp 0x7fff302e4ca0 sp 0x7fff302e4428 T0)
==1282==Hint: pc points to the zero page.
==1282==The signal is caused by a READ memory access.
==1282==Hint: address points to the zero page.
    #0 0x0  (<unknown module>)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (<unknown module>) 
==1282==ABORTING
[root@bbd28b3fbe6e /]# gcc --version
gcc (GCC) 10.1.0
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

[mrc0mmand]

Update: a patch has been proposed: https://reviews.llvm.org/D85011