scripts/kernel-doc.py: move modulename to man class

Only man output requires a modulename. Move its definition
to the man class.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/583085e3885b0075d16ef9961b4f2ad870f30a55.1744106242.git.mchehab+huawei@kernel.org

scripts/lib/kdoc/kdoc_files.py

@@ -126,7 +126,7 @@ class KernelFiles():
     def __init__(self, verbose=False, out_style=None,
                  werror=False, wreturn=False, wshort_desc=False,
                  wcontents_before_sections=False,
-                 logger=None, modulename=None):
+                 logger=None):
         """
         Initialize startup variables and parse all files
         """
@@ -134,9 +134,6 @@ class KernelFiles():
         if not verbose:
             verbose = bool(os.environ.get("KBUILD_VERBOSE", 0))
 
-        if not modulename:
-            modulename = "Kernel API"
-
         if out_style is None:
             out_style = OutputFormat()
 
@@ -168,7 +165,6 @@ class KernelFiles():
         self.config.wreturn = wreturn
         self.config.wshort_desc = wshort_desc
         self.config.wcontents_before_sections = wcontents_before_sections
-        self.config.modulename = modulename
 
         self.config.function_table = set()
         self.config.source_map = {}