examples : remove --instruct remnants (#7846)

examples/llama2-13b.sh

@@ -1,18 +0,0 @@
-#!/bin/bash
-
-#
-# Temporary script - will be removed in the future
-#
-
-cd `dirname $0`
-cd ..
-
-./main -m models/available/Llama2/13B/llama-2-13b.ggmlv3.q4_0.bin \
-       --color \
-       --ctx_size 2048 \
-       -n -1 \
-       -ins -b 256 \
-       --top_k 10000 \
-       --temp 0.2 \
-       --repeat_penalty 1.1 \
-       -t 8