Remove no-longer-needed allows for clippy lints

Various clippy lints have either been made smarter such that they no
longer trigger, or have been moved to the pedantic group which is
allowed by default.

Author: nicholasbishop

src/alloc.rs

@@ -51,7 +51,6 @@ pub fn exit_boot_services() {
 /// Only valid for as long as the UEFI boot services are available.
 pub struct Allocator;
 
-#[allow(clippy::cast_ptr_alignment)]
 unsafe impl GlobalAlloc for Allocator {
     unsafe fn alloc(&self, layout: Layout) -> *mut u8 {
         let mem_ty = MemoryType::LOADER_DATA;

src/proto/console/gop.rs

@@ -76,7 +76,6 @@ pub struct GraphicsOutput<'boot> {
     ) -> Status,
     set_mode: extern "efiapi" fn(&mut GraphicsOutput, mode: u32) -> Status,
     // Clippy correctly complains that this is too complicated, but we can't change the spec.
-    #[allow(clippy::type_complexity)]
     blt: unsafe extern "efiapi" fn(
         this: &mut GraphicsOutput,
         buffer: *mut BltPixel,

src/proto/media/file/info.rs

@@ -265,7 +265,6 @@ impl FileSystemInfo {
     /// The buffer must be correctly aligned. You can query the required
     /// alignment using the `alignment()` method of the `Align` trait that this
     /// struct implements.
-    #[allow(clippy::too_many_arguments)]
     pub fn new<'buf>(
         storage: &'buf mut [u8],
         read_only: bool,

src/result/status.rs

@@ -128,7 +128,6 @@ impl Status {
 
     /// Converts this status code into a result with a given value.
     #[inline]
-    #[allow(clippy::result_unit_err)]
     pub fn into_with_val<T>(self, val: impl FnOnce() -> T) -> Result<T, ()> {
         if self.is_success() {
             Ok(val())

src/table/boot.rs

@@ -283,7 +283,6 @@ impl BootServices {
     )> {
         let mut map_size = buffer.len();
         MemoryDescriptor::assert_aligned(buffer);
-        #[allow(clippy::cast_ptr_alignment)]
         let map_buffer = buffer.as_ptr() as *mut MemoryDescriptor;
         let mut map_key = MemoryMapKey(0);
         let mut entry_size = 0;

src/table/cfg.rs

@@ -7,8 +7,6 @@
 //! This module contains the actual entries of the configuration table,
 //! as well as GUIDs for many known vendor tables.
 
-#![allow(clippy::unreadable_literal)]
-
 use crate::Guid;
 use bitflags::bitflags;
 use core::ffi::c_void;

uefi-macros/src/lib.rs

@@ -68,7 +68,6 @@ pub fn unsafe_guid(args: TokenStream, input: TokenStream) -> TokenStream {
     result.append_all(quote! {
         unsafe impl #impl_generics ::uefi::Identify for #ident #ty_generics #where_clause {
             #[doc(hidden)]
-            #[allow(clippy::unreadable_literal)]
             const GUID: ::uefi::Guid = ::uefi::Guid::from_values(
                 #time_low,
                 #time_mid,