Remove duplicate regex in system.go for -check-requirements

(cherry picked from commit fa2f106)

Author: gustavo-iniguez-goya

daemon/core/system.go

@@ -86,7 +86,6 @@ func CheckSysRequirements() {
         "Regexps": [
             "CONFIG_KPROBES=y",
             "CONFIG_KPROBES_ON_FTRACE=y",
-            "CONFIG_KPROBES_ON_FTRACE=y",
             "CONFIG_HAVE_KPROBES=y",
             "CONFIG_HAVE_KPROBES_ON_FTRACE=y",
             "CONFIG_KPROBE_EVENTS=y"