Remove the biaffine parser (#59)

The biaffine parser is now in the separate `spacy-biaffine-parser`
package: https://github.com/explosion/spacy-biaffine-parser

README.md

@@ -189,33 +189,6 @@ maxout_pieces = 2
 The NER version does not currently support sentence boundaries, but it would be
 easy to extend using a `B-SENT` entity type.
 
-### Biaffine parser
-
-A biaffine dependency parser, similar to that proposed in [Deep Biaffine
-Attention for Neural Dependency Parsing](Deep Biaffine Attention for Neural
-Dependency Parsing) (Dozat & Manning, 2016). The parser consists of two parts:
-an edge predicter and an edge labeler. For example:
-
-```ini
-[components.experimental_arc_predicter]
-factory = "experimental_arc_predicter"
-
-[components.experimental_arc_labeler]
-factory = "experimental_arc_labeler"
-```
-
-The arc predicter requires that a previous component (such as `senter`) sets
-sentence boundaries during training. Therefore, such a component must be added
-to `annotating_components`:
-
-```ini
-[training]
-annotating_components = ["senter"]
-```
-
-The [biaffine parser sample project](projects/biaffine_parser) provides an
-example biaffine parser pipeline.
-
 ### Span Finder
 
 The SpanFinder is a new experimental component that identifies span boundaries
@@ -393,6 +366,13 @@ sizes = [1, 2, 3]
 
 Note that all the suggester functions are registered in `@misc`.
 
+## Former components
+
+- The edit tree lemmatizer is
+  [in spaCy since version 3.3](https://spacy.io/usage/v3-3#trainable-lemmatizer).
+- The biaffine parser has moved into the standalone package
+  [`spacy-biaffine-parser`](https://github.com/explosion/spacy-biaffine-parser).
+
 ## Bug reports and issues
 
 Please report bugs in the

setup.cfg

@@ -17,14 +17,10 @@ install_requires =
 
 [options.entry_points]
 spacy_architectures =
-    spacy-experimental.Bilinear.v1 = spacy_experimental.biaffine_parser.bilinear:build_bilinear
-    spacy-experimental.PairwiseBilinear.v1 = spacy_experimental.biaffine_parser.pairwise_bilinear:build_pairwise_bilinear
     spacy-experimental.SpanFinder.v1 = spacy_experimental.span_finder.span_finder_model:build_finder_model
     spacy-experimental.Coref.v1 = spacy_experimental.coref.coref_model:build_coref_model
     spacy-experimental.SpanResolver.v1 = spacy_experimental.coref.span_resolver_model:build_span_resolver
 spacy_factories =
-    experimental_arc_labeler = spacy_experimental.biaffine_parser.arc_labeler:make_arc_labeler
-    experimental_arc_predicter = spacy_experimental.biaffine_parser.arc_predicter:make_arc_predicter
     experimental_char_tagger_tokenizer = spacy_experimental.char_tokenizer.char_tagger_tokenizer:make_char_tagger_tokenizer
     experimental_char_ner_tokenizer = spacy_experimental.char_tokenizer.char_ner_tokenizer:make_char_ner_tokenizer
     experimental_span_finder = spacy_experimental.span_finder.span_finder_component:make_span_finder

setup.py

@@ -44,27 +44,6 @@ def build_extensions(self):
 
 def setup_package():
     ext_modules = [
-        Extension(
-            "spacy_experimental.biaffine_parser.arc_predicter",
-            ["spacy_experimental/biaffine_parser/arc_predicter.pyx"],
-            language="c++",
-            include_dirs=[numpy.get_include()],
-            extra_compile_args=["-std=c++11"],
-        ),
-        Extension(
-            "spacy_experimental.biaffine_parser.arc_labeler",
-            ["spacy_experimental/biaffine_parser/arc_labeler.pyx"],
-            language="c++",
-            include_dirs=[numpy.get_include()],
-            extra_compile_args=["-std=c++11"],
-        ),
-        Extension(
-            "spacy_experimental.biaffine_parser.mst",
-            ["spacy_experimental/biaffine_parser/mst.pyx"],
-            language="c++",
-            include_dirs=[numpy.get_include()],
-            extra_compile_args=["-std=c++11"],
-        ),
         Extension(
             "spacy_experimental.char_tokenizer.char_tagger_tokenizer",
             ["spacy_experimental/char_tokenizer/char_tagger_tokenizer.pyx"],