Sadly we need to keep ASN1_put_eoc. Ruby uses it.
OpenSSL's PKCS#7 implementation generated an "ndef" variant of the
encoding functions, to request indefinite-length encoding. Remove the
support code for this.
Update-Note: Types that use one of the NDEF macros in asn1t.h will fail
to compile. This CL should not affect certificate parsing.
Change-Id: I6e03f6927ea4b7a6acd73ac58bf49512b39baab8
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/43889
Reviewed-by: Adam Langley <agl@google.com>