Delete all EOTs in iptables commands and remove fixCommandString.

Test: bullead builds and boots with no iptables errors
Test: netd_{unit,integration}_test pass
Bug: 32323979
Change-Id: I33ad04ee8f0562bcd4e14046352c934cd2039a5d
diff --git a/server/StrictController.cpp b/server/StrictController.cpp
index 8cdee07..eae523c 100644
--- a/server/StrictController.cpp
+++ b/server/StrictController.cpp
@@ -127,7 +127,7 @@
            LOCAL_CLEAR_DETECT, u32, LOCAL_CLEAR_CAUGHT);
 
     CMD_V4V6("-A %s -p udp -j %s", LOCAL_CLEAR_DETECT, LOCAL_CLEAR_CAUGHT);
-    CMD_V4V6("COMMIT\n\x04");
+    CMD_V4V6("COMMIT\n");
 
     res |= execIptablesRestore(V4, android::base::Join(v4, '\n'));
     res |= execIptablesRestore(V6, android::base::Join(v6, '\n'));
@@ -149,7 +149,7 @@
         CLEAR_CHAIN(LOCAL_PENALTY_REJECT),
         CLEAR_CHAIN(LOCAL_CLEAR_CAUGHT),
         CLEAR_CHAIN(LOCAL_CLEAR_DETECT),
-        "COMMIT\n\x04"
+        "COMMIT\n"
     };
     const std::string commands = android::base::Join(commandList, '\n');
     return execIptablesRestore(V4V6, commands);