RISC-V: Remove redundant printf of abs-run.c

RISC-V: Remove redundant printf of abs-run.c

Notice that this testcase cause unexpected fail:
FAIL: gcc.target/riscv/rvv/autovec/unop/abs-run.c (test for excess
errors)
Excess errors:
/work/home/jzzhong/work/rvv-opensource/software/host/toolchain/gcc/riscv-gcc/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/abs-run.c:22:7:
warning: implicit declaration of function 'printf'
[-Wimplicit-function-declaration]
/work/home/jzzhong/work/rvv-opensource/software/host/toolchain/gcc/riscv-gcc/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/abs-run.c:22:7:
warning: incompatible implicit declaration of built-in function 'printf'
[-Wbuiltin-declaration-mismatch]
/work/home/jzzhong/work/rvv-opensource/software/host/toolchain/gcc/riscv-gcc/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/abs-run.c:22:7:
warning: incompatible implicit declaration of built-in function 'printf'
[-Wbuiltin-declaration-mismatch]
/work/home/jzzhong/work/rvv-opensource/software/host/toolchain/gcc/riscv-gcc/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/abs-run.c:22:7:
warning: incompatible implicit declaration of built-in function 'printf'
[-Wbuiltin-declaration-mismatch]
/work/home/jzzhong/work/rvv-opensource/software/host/toolchain/gcc/riscv-gcc/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/abs-run.c:22:7:
warning: incompatible implicit declaration of built-in function 'printf'
[-Wbuiltin-declaration-mismatch]

spawn /work/home/jzzhong/work/rvv-opensource/output/sim/bin/spike
--isa=RV64GCVZfh
/work/home/jzzhong/work/rvv-opensource/output/sim/riscv64-rivai-elf/bin/pk
./abs-run.exe^M
bbl loader^M^M
0 0 -64^M
1 63 -63^M
2 2 -62^M
3 61 -61^M
4 4 -60^M
5 59 -59^M
6 6 -58^M
7 57 -57^M
8 8 -56^M
9 55 -55^M
10 10 -54^M
11 53 -53^M
12 12 -52^M
13 51 -51^M

Remove printf since it's unnecessary.

Signed-off-by: Juzhe-Zhong <juzhe.zhong@rivai.ai>
gcc/testsuite/ChangeLog:

	* gcc.target/riscv/rvv/autovec/unop/abs-run.c: Remove redundant printf.