Revert "Enable verity on userdebug, and add disable-verity to adb"

Build is broken.

system/core/fs_mgr/fs_mgr_verity.c: In function 'fs_mgr_setup_verity':
system/core/fs_mgr/fs_mgr_verity.c:103:20: error: 'verity_table_signature' may be used uninitialized in this function [-Werror=maybe-uninitialized]
     if (!RSA_verify(key,
                    ^
system/core/fs_mgr/fs_mgr_verity.c:374:11: note: 'verity_table_signature' was declared here
     char *verity_table_signature;
           ^
cc1: all warnings being treated as errors
make: *** [out/target/product/minnow/obj/STATIC_LIBRARIES/libfs_mgr_intermediates/fs_mgr_verity.o] Error 1
make: *** Waiting for unfinished jobs....

This reverts commit d4cea0bc16d1ad96cc6d6177232d7b339785460c.

Change-Id: I6862cc79ef9d944a2472b6fb2e46dae514cea8ce
diff --git a/adb/commandline.c b/adb/commandline.c
index 87baeb9..05b4ef6 100644
--- a/adb/commandline.c
+++ b/adb/commandline.c
@@ -189,7 +189,6 @@
         "\n"
         "  adb restore <file>           - restore device contents from the <file> backup archive\n"
         "\n"
-        "  adb disable-verity           - disable dm-verity checking on USERDEBUG builds\n"
         "  adb help                     - show this help message\n"
         "  adb version                  - show version num\n"
         "\n"
@@ -206,7 +205,8 @@
         "  adb reboot-bootloader        - reboots the device into the bootloader\n"
         "  adb root                     - restarts the adbd daemon with root permissions\n"
         "  adb usb                      - restarts the adbd daemon listening on USB\n"
-        "  adb tcpip <port>             - restarts the adbd daemon listening on TCP on the specified port\n"
+        "  adb tcpip <port>             - restarts the adbd daemon listening on TCP on the specified port"
+        "\n"
         "networking:\n"
         "  adb ppp <tty> [parameters]   - Run PPP over USB.\n"
         " Note: you should not automatically start a PPP connection.\n"
@@ -1437,7 +1437,7 @@
     if(!strcmp(argv[0], "remount") || !strcmp(argv[0], "reboot")
             || !strcmp(argv[0], "reboot-bootloader")
             || !strcmp(argv[0], "tcpip") || !strcmp(argv[0], "usb")
-            || !strcmp(argv[0], "root") || !strcmp(argv[0], "disable-verity")) {
+            || !strcmp(argv[0], "root")) {
         char command[100];
         if (!strcmp(argv[0], "reboot-bootloader"))
             snprintf(command, sizeof(command), "reboot:bootloader");