Remove unnecessary unicode prefixes

Change-Id: I73ee8de9fbbd647f83b4537362ce53b1a8f2d503

doc/source/conf.py

@@ -46,8 +46,8 @@ source_suffix = '.rst'
 master_doc = 'index'
 
 # General information about the project.
-project = u'oslo.metrics'
-copyright = u'2014, OpenStack Foundation'
+project = 'oslo.metrics'
+copyright = '2014, OpenStack Foundation'
 
 # If true, '()' will be appended to :func: etc. cross-reference text.
 add_function_parentheses = True
@@ -79,8 +79,8 @@ htmlhelp_basename = '%sdoc' % project
 latex_documents = [
     ('index',
      '%s.tex' % project,
-     u'%s Documentation' % project,
-     u'OpenStack Foundation', 'manual'),
+     '%s Documentation' % project,
+     'OpenStack Foundation', 'manual'),
 ]
 
 intersphinx_mapping = {

releasenotes/source/conf.py

@@ -58,8 +58,8 @@ source_suffix = '.rst'
 master_doc = 'index'
 
 # General information about the project.
-project = u'oslo.metrics Release Notes'
-copyright = u'2020, oslo.metrics Developers'
+project = 'oslo.metrics Release Notes'
+copyright = '2020, oslo.metrics Developers'
 
 # Release notes do not need a version in the title, they span
 # multiple versions.
@@ -208,8 +208,8 @@ latex_elements = {
 #  author, documentclass [howto, manual, or own class]).
 latex_documents = [
     ('index', 'oslo.metricsReleaseNotes.tex',
-     u'oslo.metrics Release Notes Documentation',
-     u'oslo.metrics Developers', 'manual'),
+     'oslo.metrics Release Notes Documentation',
+     'oslo.metrics Developers', 'manual'),
 ]
 
 # The name of an image file (relative to this directory) to place at the top of
@@ -238,8 +238,8 @@ latex_documents = [
 # (source start file, name, description, authors, manual section).
 man_pages = [
     ('index', 'oslo.metricsReleaseNotes',
-     u'oslo.metrics Release Notes Documentation',
-     [u'oslo.metrics Developers'], 1)
+     'oslo.metrics Release Notes Documentation',
+     ['oslo.metrics Developers'], 1)
 ]
 
 # If true, show URL addresses after external links.
@@ -252,8 +252,8 @@ man_pages = [
 #  dir menu entry, description, category)
 texinfo_documents = [
     ('index', 'oslo.metricsReleaseNotes',
-     u'oslo.metrics Release Notes Documentation',
-     u'oslo.metrics Developers', 'oslo.metricsReleaseNotes',
+     'oslo.metrics Release Notes Documentation',
+     'oslo.metrics Developers', 'oslo.metricsReleaseNotes',
      'One line description of project.',
      'Miscellaneous'),
 ]