Revert "[ruby/readline-ext] Include ruby/assert.h in ruby/ruby.h so that assertions can be there"
This reverts commit 425b2064d394639101854c83a061a0918b33b857.
This cherry-pick was a mistake.
Revert "[ruby/readline-ext] Include ruby/assert.h in ruby/ruby.h so that assertions can be there"
This reverts commit 425b2064d394639101854c83a061a0918b33b857.
This cherry-pick was a mistake.