NetBpfLoad: remove isGSI() check

it doesn't work due to sepolicy anyway:

I auditd  : type=1400 audit(0.0:6): avc:  denied  { search } for  comm="netbpfload" name="gsi" dev="sda8" ino=23 scontext=u:r:bpfloader:s0 tcontext=u:object_r:gsi_metadata_file:s0 tclass=dir permissive=0

Bug: 347309609
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Ic8c56a096a89a89950585b939379634accb78e56
diff --git a/netbpfload/NetBpfLoad.cpp b/netbpfload/NetBpfLoad.cpp
index b9976e0..a247bda 100644
--- a/netbpfload/NetBpfLoad.cpp
+++ b/netbpfload/NetBpfLoad.cpp
@@ -224,11 +224,6 @@
     return 0;
 }
 
-static bool isGSI() {
-    // From //system/gsid/libgsi.cpp IsGsiRunning()
-    return !access("/metadata/gsi/dsu/booted", F_OK);
-}
-
 static bool hasGSM() {
     static string ph = base::GetProperty("gsm.current.phone-type", "");
     static bool gsm = (ph != "");
@@ -351,7 +346,7 @@
 
 #undef REQUIRE
 
-        if (bad && !isGSI()) {
+        if (bad) {
             ALOGE("Unsupported kernel version (%07x).", kernelVersion());
         }
     }