Try again to disable LTO on riscv64

Signed-off-by: David Abdurachmanov <davidlt@rivosinc.com>

compiler-rt.spec

@@ -9,13 +9,9 @@
 # see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93615
 %global optflags %(echo %{optflags} -Dasm=__asm__)
 
-%ifarch riscv64
+%global _clang_lto_cflags %{nil}
 %global _lto_cflags %{nil}
-%endif
-
-%ifarch riscv64
 %define _lto_cflags %{nil}
-%endif
 
 Name:		compiler-rt
 Version:	%{compiler_rt_version}%{?rc_ver:~rc%{rc_ver}}
@@ -54,9 +50,7 @@ instrumentation, and Blocks C language extension.
 %py3_shebang_fix lib/hwasan/scripts/hwasan_symbolize
 
 %build
-%ifarch riscv64
 %define _lto_cflags %{nil}
-%endif
 
 # Copy CFLAGS into ASMFLAGS, so -fcf-protection is used when compiling assembly files.
 export ASMFLAGS=$CFLAGS