RISC-V: Drop __riscv_vendor_feature_bits

As discussed from RISC-V C-API PR #101 [1], As discussed in #96, current
interface is insufficient to support some cases, like a vendor buying a
CPU IP from the upstream vendor but using their own mvendorid and custom
features from the upstream vendor. In this case, we might need to add
these extensions for each downstream vendor many times. Thus, making
__riscv_vendor_feature_bits guarded by mvendorid is not a good idea. So,
drop __riscv_vendor_feature_bits for now, and we should have time to
discuss a better solution.

[1] https://github.com/riscv-non-isa/riscv-c-api-doc/pull/101

Signed-off-by: Yangyu Chen <cyy@cyyself.name>

gcc/ChangeLog:

	* config/riscv/riscv-feature-bits.h (RISCV_VENDOR_FEATURE_BITS_LENGTH): Drop.
	(struct riscv_vendor_feature_bits): Drop.

libgcc/ChangeLog:

	* config/riscv/feature_bits.c (RISCV_VENDOR_FEATURE_BITS_LENGTH): Drop.
	(__init_riscv_features_bits_linux): Drop.

0 files changed, 0 insertions, 0 deletions