qemu/compiler: Remove QEMU_GENERIC

All previous users now use C11 _Generic.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210614233143.1221879-8-richard.henderson@linaro.org>

include/qemu/compiler.h

@@ -173,46 +173,6 @@
 #define QEMU_ALWAYS_INLINE
 #endif
 
-/* Implement C11 _Generic via GCC builtins.  Example:
- *
- *    QEMU_GENERIC(x, (float, sinf), (long double, sinl), sin) (x)
- *
- * The first argument is the discriminator.  The last is the default value.
- * The middle ones are tuples in "(type, expansion)" format.
- */
-
-/* First, find out the number of generic cases.  */
-#define QEMU_GENERIC(x, ...) \
-    QEMU_GENERIC_(typeof(x), __VA_ARGS__, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0)
-
-/* There will be extra arguments, but they are not used.  */
-#define QEMU_GENERIC_(x, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, count, ...) \
-    QEMU_GENERIC##count(x, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9)
-
-/* Two more helper macros, this time to extract items from a parenthesized
- * list.
- */
-#define QEMU_FIRST_(a, b) a
-#define QEMU_SECOND_(a, b) b
-
-/* ... and a final one for the common part of the "recursion".  */
-#define QEMU_GENERIC_IF(x, type_then, else_)                                   \
-    __builtin_choose_expr(__builtin_types_compatible_p(x,                      \
-                                                       QEMU_FIRST_ type_then), \
-                          QEMU_SECOND_ type_then, else_)
-
-/* CPP poor man's "recursion".  */
-#define QEMU_GENERIC1(x, a0, ...) (a0)
-#define QEMU_GENERIC2(x, a0, ...) QEMU_GENERIC_IF(x, a0, QEMU_GENERIC1(x, __VA_ARGS__))
-#define QEMU_GENERIC3(x, a0, ...) QEMU_GENERIC_IF(x, a0, QEMU_GENERIC2(x, __VA_ARGS__))
-#define QEMU_GENERIC4(x, a0, ...) QEMU_GENERIC_IF(x, a0, QEMU_GENERIC3(x, __VA_ARGS__))
-#define QEMU_GENERIC5(x, a0, ...) QEMU_GENERIC_IF(x, a0, QEMU_GENERIC4(x, __VA_ARGS__))
-#define QEMU_GENERIC6(x, a0, ...) QEMU_GENERIC_IF(x, a0, QEMU_GENERIC5(x, __VA_ARGS__))
-#define QEMU_GENERIC7(x, a0, ...) QEMU_GENERIC_IF(x, a0, QEMU_GENERIC6(x, __VA_ARGS__))
-#define QEMU_GENERIC8(x, a0, ...) QEMU_GENERIC_IF(x, a0, QEMU_GENERIC7(x, __VA_ARGS__))
-#define QEMU_GENERIC9(x, a0, ...) QEMU_GENERIC_IF(x, a0, QEMU_GENERIC8(x, __VA_ARGS__))
-#define QEMU_GENERIC10(x, a0, ...) QEMU_GENERIC_IF(x, a0, QEMU_GENERIC9(x, __VA_ARGS__))
-
 /**
  * qemu_build_not_reached()
  *