Remove io-threads-do-reads from normal config list (#13987)

Since after https://github.com/redis/redis/pull/13695,
`io-threads-do-reads` config is deprecated, we should remove it from
normal config list and only keep it in deprecated config list, but we
forgot to do this, this PR fixes this.

thanks @YaacovHazan for reporting this

.github/workflows/daily.yml

@@ -346,10 +346,10 @@ jobs:
       run: sudo apt-get install tcl8.6 tclx
     - name: test
       if: true && !contains(github.event.inputs.skiptests, 'redis')
-      run: ./runtest --config io-threads 4 --config io-threads-do-reads yes --accurate --verbose --tags network --dump-logs ${{github.event.inputs.test_args}}
+      run: ./runtest --config io-threads 4 --accurate --verbose --tags network --dump-logs ${{github.event.inputs.test_args}}
     - name: cluster tests
       if: true && !contains(github.event.inputs.skiptests, 'cluster')
-      run: ./runtest-cluster --config io-threads 4 --config io-threads-do-reads yes ${{github.event.inputs.cluster_test_args}}
+      run: ./runtest-cluster --config io-threads 4 ${{github.event.inputs.cluster_test_args}}
 
   test-ubuntu-reclaim-cache:
     runs-on: ubuntu-latest

src/config.c

@@ -3068,7 +3068,6 @@ standardConfig static_configs[] = {
     /* Bool configs */
     createBoolConfig("rdbchecksum", NULL, IMMUTABLE_CONFIG, server.rdb_checksum, 1, NULL, NULL),
     createBoolConfig("daemonize", NULL, IMMUTABLE_CONFIG, server.daemonize, 0, NULL, NULL),
-    createBoolConfig("io-threads-do-reads", NULL, DEBUG_CONFIG | IMMUTABLE_CONFIG, server.io_threads_do_reads, 0,NULL, NULL), /* Read + parse from threads? */
     createBoolConfig("always-show-logo", NULL, IMMUTABLE_CONFIG, server.always_show_logo, 0, NULL, NULL),
     createBoolConfig("protected-mode", NULL, MODIFIABLE_CONFIG, server.protected_mode, 1, NULL, NULL),
     createBoolConfig("rdbcompression", NULL, MODIFIABLE_CONFIG, server.rdb_compression, 1, NULL, NULL),

tests/unit/introspection.tcl

@@ -448,7 +448,6 @@ start_server {tags {"introspection"}} {
         set skip_configs {
             rdbchecksum
             daemonize
-            io-threads-do-reads
             tcp-backlog
             always-show-logo
             syslog-enabled