community[minor]: 04 - Refactoring PDFMiner parser (#29526)

This is one part of a larger Pull Request (PR) that is too large to be
submitted all at once. This specific part focuses on updating the XXX
parser.

For more details, see [PR
28970](https://github.com/langchain-ai/langchain/pull/28970).

---------

Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>

libs/community/tests/unit_tests/document_loaders/parsers/test_pdf_parsers.py

@@ -10,7 +10,6 @@ import langchain_community.document_loaders.parsers as pdf_parsers
 from langchain_community.document_loaders.base import BaseBlobParser
 from langchain_community.document_loaders.blob_loaders import Blob
 from langchain_community.document_loaders.parsers.pdf import (
-    PDFMinerParser,
     PyPDFium2Parser,
     _merge_text_and_extras,
 )
@@ -75,13 +74,6 @@ def _assert_with_parser(parser: BaseBlobParser, *, splits_by_page: bool = True)
         assert int(metadata["page"]) == 0
 
 
-@pytest.mark.requires("pdfminer")
-def test_pdfminer_parser() -> None:
-    """Test PDFMiner parser."""
-    # Does not follow defaults to split by page.
-    _assert_with_parser(PDFMinerParser(), splits_by_page=False)
-
-
 @pytest.mark.requires("pypdfium2")
 def test_pypdfium2_parser() -> None:
     """Test PyPDFium2 parser."""
@@ -92,6 +84,7 @@ def test_pypdfium2_parser() -> None:
 @pytest.mark.parametrize(
     "parser_factory,require,params",
     [
+        ("PDFMinerParser", "pdfminer", {"splits_by_page": False}),
         ("PyMuPDFParser", "pymupdf", {}),
         ("PyPDFParser", "pypdf", {}),
     ],