RISC-V: Remove testcase that cannot be compiled because VLEN limitation

Since the latter patch (https://gcc.gnu.org/pipermail/gcc-patches/2023-July/624689.html)
forbidden VLEN > 4096, the testcase attribute-20.c is no long need. This is obvious.

gcc/testsuite/ChangeLog:

	* gcc.target/riscv/attribute-20.c: Removed.

diff --git a/gcc/testsuite/gcc.target/riscv/attribute-20.c b/gcc/testsuite/gcc.target/riscv/attribute-20.c
deleted file mode 100644 (file)
index f7d0b29..0000000
--- a/gcc/testsuite/gcc.target/riscv/attribute-20.c
+++ /dev/null
@@ -1,7 +0,0 @@
-/* { dg-do compile } */
-/* { dg-options "-march=rv64gcv_zvl65536b -mabi=lp64d" } */
-int foo()
-{
-}
-
-/* { dg-final { scan-assembler ".attribute arch, \"rv64i2p1_m2p0_a2p1_f2p2_d2p2_c2p0_v1p0_zicsr2p0_zifencei2p0_zve32f1p0_zve32x1p0_zve64d1p0_zve64f1p0_zve64x1p0_zvl1024b1p0_zvl128b1p0_zvl16384b1p0_zvl2048b1p0_zvl256b1p0_zvl32768b1p0_zvl32b1p0_zvl4096b1p0_zvl512b1p0_zvl64b1p0_zvl65536b1p0_zvl8192b1p0\"" } } */