Remove inaccurate comment about const_fn

Signed-off-by: Joe Richey <joerichey@google.com>

Author: josephlr

src/addr.rs

@@ -625,8 +625,7 @@ impl Sub<PhysAddr> for PhysAddr {
 ///
 /// Returns the greatest `x` with alignment `align` so that `x <= addr`.
 ///
-/// Panics if the alignment is not a power of two. Without the `const_fn`
-/// feature, the panic message will be "index out of bounds".
+/// Panics if the alignment is not a power of two.
 #[inline]
 pub const fn align_down(addr: u64, align: u64) -> u64 {
     assert!(align.is_power_of_two(), "`align` must be a power of two");
@@ -637,8 +636,7 @@ pub const fn align_down(addr: u64, align: u64) -> u64 {
 ///
 /// Returns the smallest `x` with alignment `align` so that `x >= addr`.
 ///
-/// Panics if the alignment is not a power of two. Without the `const_fn`
-/// feature, the panic message will be "index out of bounds".
+/// Panics if the alignment is not a power of two.
 #[inline]
 pub const fn align_up(addr: u64, align: u64) -> u64 {
     assert!(align.is_power_of_two(), "`align` must be a power of two");

src/structures/gdt.rs

@@ -96,8 +96,7 @@ impl GlobalDescriptorTable {
     const_fn! {
         /// Adds the given segment descriptor to the GDT, returning the segment selector.
         ///
-        /// Panics if the GDT has no free entries left.  Without the `const_fn`
-        /// feature, the panic message will be "index out of bounds".
+        /// Panics if the GDT has no free entries left.
         #[inline]
         pub fn add_entry(&mut self, entry: Descriptor) -> SegmentSelector {
             let index = match entry {