Remove numerous things deprecated during the 0.14 release cycle

Basically everything that has a direct replacement or no uses left.

Notable omissions:

- std.ArrayHashMap: Too much fallout, needs a separate cleanup.
- std.debug.runtime_safety: Too much fallout.
- std.heap.GeneralPurposeAllocator: Lots of references to it remain, not
  a simple find and replace as "debug allocator" is not equivalent to
  "general purpose allocator".
- std.io.Reader: Is being reworked at the moment.
- std.unicode.utf8Decode(): No replacement, needs a new API first.
- Manifest backwards compat options: Removal would break test data used
  by TestFetchBuilder.
- panic handler needs to be a namespace: Many tests still rely on it
  being a function, needs a separate cleanup.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/Zcu.zig b/src/Zcu.zig
index 26ee09cfbf..6d07477edc 100644
--- a/src/Zcu.zig
+++ b/src/Zcu.zig
@@ -808,7 +808,7 @@ pub const Namespace = struct {
 
         pub fn hash(ctx: NavNameContext, nav: InternPool.Nav.Index) u32 {
             const name = ctx.zcu.intern_pool.getNav(nav).name;
-            return std.hash.uint32(@intFromEnum(name));
+            return std.hash.int(@intFromEnum(name));
         }
 
         pub fn eql(ctx: NavNameContext, a_nav: InternPool.Nav.Index, b_nav: InternPool.Nav.Index, b_index: usize) bool {
@@ -824,7 +824,7 @@ pub const Namespace = struct {
 
         pub fn hash(ctx: NameAdapter, s: InternPool.NullTerminatedString) u32 {
             _ = ctx;
-            return std.hash.uint32(@intFromEnum(s));
+            return std.hash.int(@intFromEnum(s));
         }
 
         pub fn eql(ctx: NameAdapter, a: InternPool.NullTerminatedString, b_nav: InternPool.Nav.Index, b_index: usize) bool {