Fix compilation on musl libc (Alpine Linux)

Remove platform-specific typedef fallback block that caused redefinition
errors on musl-based systems. Since stdint.h is already included and
provides uint8_t/uint16_t/uint64_t on all modern platforms, the fallback
is unnecessary.

Tested on Alpine Linux (musl) and Ubuntu (glibc).

Related to upstream PR asg017#199

Author: vlasky

scripts/vendor.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 mkdir -p vendor
 curl -o sqlite-amalgamation.zip https://www.sqlite.org/2024/sqlite-amalgamation-3450300.zip
 unzip sqlite-amalgamation.zip

sqlite-vec.c

@@ -61,18 +61,6 @@ SQLITE_EXTENSION_INIT1
 #define LONGDOUBLE_TYPE long double
 #endif
 
-#ifndef _WIN32
-#ifndef __EMSCRIPTEN__
-#ifndef __COSMOPOLITAN__
-#ifndef __wasi__
-typedef u_int8_t uint8_t;
-typedef u_int16_t uint16_t;
-typedef u_int64_t uint64_t;
-#endif
-#endif
-#endif
-#endif
-
 typedef int8_t i8;
 typedef uint8_t u8;
 typedef int16_t i16;