[IMPR] Remove old code for mw < 1.27

Bug: T306637
Change-Id: I4ba60fa97cae601abbe219d40769d7d374337387
---
M pywikibot/data/api/_paraminfo.py
M tests/api_tests.py
2 files changed, 24 insertions(+), 36 deletions(-)

diff --git a/pywikibot/data/api/_paraminfo.py b/pywikibot/data/api/_paraminfo.py
index 1097c00..4112919 100644
--- a/pywikibot/data/api/_paraminfo.py
+++ b/pywikibot/data/api/_paraminfo.py
@@ -102,8 +102,7 @@
                 self.paraminfo_keys = frozenset(['modules'])
 
         # Assume that by v1.26, it will be desirable to prefetch 'query'
-        if mw_ver > '1.26':
-            self.preloaded_modules |= {'query'}
+        self.preloaded_modules |= {'query'}
 
         self._fetch(self.preloaded_modules)
 
@@ -299,40 +298,21 @@
         """Check and generate submodules for the given module."""
         parameters = self._paraminfo[module].get('parameters', [])
         submodules = set()
-        # Advanced submodule into added to MW API in df80f1ea
-        if self.site.mw_version >= '1.26wmf9':
-            # This is supplying submodules even if they aren't submodules
-            # of the given module so skip those
-            for param in parameters:
-                if module == 'main' and param['name'] == 'format' \
-                   or 'submodules' not in param:
-                    continue
 
-                for submodule in param['submodules'].values():
-                    if '+' in submodule:
-                        parent, child = submodule.rsplit('+', 1)
-                    else:
-                        parent, child = 'main', submodule
-                    if parent == module:
-                        submodules.add(child)
-        else:
-            # Boolean submodule info added to MW API in afa153ae
-            if self.site.mw_version < '1.24wmf18':
-                if module == 'main':
-                    params = {'action'}
-                elif module == 'query':
-                    params = {'prop', 'list', 'meta'}
+        # This is supplying submodules even if they aren't submodules
+        # of the given module so skip those
+        for param in parameters:
+            if module == 'main' and param['name'] == 'format' \
+               or 'submodules' not in param:
+                continue
+
+            for submodule in param['submodules'].values():
+                if '+' in submodule:
+                    parent, child = submodule.rsplit('+', 1)
                 else:
-                    params = set()
-                for param in parameters:
-                    if param['name'] in params:
-                        param['submodules'] = ''
-
-            for param in parameters:
-                # Do not add format modules
-                if 'submodules' in param \
-                   and (module != 'main' or param['name'] != 'format'):
-                    submodules |= set(param['type'])
+                    parent, child = 'main', submodule
+                if parent == module:
+                    submodules.add(child)
 
         if submodules:
             self._add_submodules(module, submodules)
diff --git a/tests/api_tests.py b/tests/api_tests.py
index dbffb21..edbae80 100755
--- a/tests/api_tests.py
+++ b/tests/api_tests.py
@@ -22,7 +22,6 @@
     DefaultDrySiteTestCase,
     DefaultSiteTestCase,
     TestCase,
-    require_version,
 )
 from tests.utils import FakeLoginManager
 
@@ -293,7 +292,6 @@
 
         self.assertIn('query+revisions', pi.prefix_map)
 
-    @require_version('>=1.25wmf4', 'support the new paraminfo api')
     def test_new_mode(self):
         """Test the new modules-only mode explicitly."""
         site = self.get_site()

