ob: Remove variables related to inline Babel code

ob: Remove variables related to inline Babel code

* lisp/ob-lob.el (org-babel-block-lob-one-liner-regexp):
(org-babel-inline-lob-one-liner-regexp):
(org-babel-lob-one-line-regexp):
* lisp/ob-core.el (org-babel-inline-src-block-regexp): Remove variables.

(org-babel-map-inline-src-blocks):
(org-babel-map-call-lines):
(org-babel-map-executables):
(org-babel-execute-buffer):
* lisp/ob-exp.el (org-babel-exp-process-buffer):
(org-babel-exp-results): Do not use removed variables.

Babel now mostly uses the parser to handle Babel code.  Regexps are not
needed anymore.