Merge branch 'hw/remove-api-docs-placeholder'

Docfix.

* hw/remove-api-docs-placeholder:
  documentation: remove empty doc files

Documentation/technical/api-grep.txt

@@ -1,8 +0,0 @@
-grep API
-========
-
-Talk about <grep.h>, things like:
-
-* grep_buffer()
-
-(JC)

Documentation/technical/api-object-access.txt

@@ -1,15 +0,0 @@
-object access API
-=================
-
-Talk about <sha1-file.c> and <object.h> family, things like
-
-* read_sha1_file()
-* read_object_with_reference()
-* has_sha1_file()
-* write_sha1_file()
-* pretend_object_file()
-* lookup_{object,commit,tag,blob,tree}
-* parse_{object,commit,tag,blob,tree}
-* Use of object flags
-
-(JC, Shawn, Daniel, Dscho, Linus)

Documentation/technical/api-quote.txt

@@ -1,10 +0,0 @@
-quote API
-=========
-
-Talk about <quote.h>, things like
-
-* sq_quote and unquote
-* c_style quote and unquote
-* quoting for foreign languages
-
-(JC)

Documentation/technical/api-xdiff-interface.txt

@@ -1,7 +0,0 @@
-xdiff interface API
-===================
-
-Talk about our calling convention to xdiff library, including
-xdiff_emit_consume_fn.
-
-(Dscho, JC)