Remove dtb command from magiskboot

docs/tools.md

@@ -14,11 +14,11 @@ su -> magisk
 
 ### magiskboot
 
-A tool to unpack / repack boot images, parse / patch / extract cpio, patch dtb, hex patch binaries, and compress / decompress files with multiple algorithms.
+A tool to unpack / repack boot images, parse / patch / extract cpio, hex patch binaries, and compress / decompress files with multiple algorithms.
 
 `magiskboot` natively supports (which means it does not rely on external tools) common compression formats including `gzip`, `lz4`, `lz4_legacy` , `lz4_lg` ([the LG edition](https://events.static.linuxfound.org/sites/events/files/lcjpcojp13_klee.pdf) of `lz4_legacy`, only used on LG), `lzma`, `xz`, and `bzip2`.
 
-The concept of `magiskboot` is to make boot image modification simpler. For unpacking, it parses the header and extracts all sections in the image, decompressing on-the-fly if compression is detected in any sections. For repacking, the original boot image is required so the original headers can be used, changing only the necessary entries such as section sizes and checksum. All sections will be compressed back to the original format if required. The tool also supports many CPIO and DTB operations.
+The concept of `magiskboot` is to make boot image modification simpler. For unpacking, it parses the header and extracts all sections in the image, decompressing on-the-fly if compression is detected in any sections. For repacking, the original boot image is required so the original headers can be used, changing only the necessary entries such as section sizes and checksum. All sections will be compressed back to the original format if required. The tool also supports many CPIO operations.
 
 ```
 Usage: ./magiskboot <action> [args...]
@@ -108,21 +108,6 @@ Supported actions:
       restore
         Restore ramdisk from ramdisk backup stored within incpio
 
-  dtb <file> <action> [args...]
-    Do dtb related actions to <file>
-    Supported actions:
-      print [-f]
-        Print all contents of dtb for debugging
-        Specify [-f] to only print fstab nodes
-      patch
-        Search for fstab and remove verity/avb
-        Modifications are done directly to the file in-place
-        Configure with env variables: KEEPVERITY
-      test
-        Test the fstab's status
-        Return values:
-        0:valid    1:error
-
   split <file>
     Split image.*-dtb into kernel + kernel_dtb
 

native/src/Cargo.toml

@@ -23,7 +23,6 @@ rsa = "0.10.0-pre.2"
 #x509-cert = "0.3"
 der = "0.8.0-rc.0"
 bytemuck = "1.16"
-fdt = "0.1"
 const_format = "0.2"
 
 [workspace.dependencies.argh]

native/src/boot/Cargo.toml

@@ -27,6 +27,5 @@ p521 = { workspace = true }
 rsa = { workspace = true, features = ["sha2"] }
 x509-cert = { workspace = true }
 der = { workspace = true, features = ["derive", "pem"] }
-fdt = { workspace = true }
 bytemuck = { workspace = true, features = ["derive", "min_const_generics"] }
 num-traits = { workspace = true }