remove patch copy-paste + artifacts from doc/conf.py

[ci skip]

Author: tkelman

doc/conf.py

@@ -201,7 +201,7 @@
         \DeclareUnicodeCharacter{025B}{\ensuremath{\varepsilon}}
         \DeclareUnicodeCharacter{03B3}{\ensuremath{\gamma}}
         \DeclareUnicodeCharacter{03B8}{\ensuremath{\theta}}
-+       \DeclareUnicodeCharacter{03BD}{\ensuremath{\nu}}
+        \DeclareUnicodeCharacter{03BD}{\ensuremath{\nu}}
         \DeclareUnicodeCharacter{03C0}{\ensuremath{\pi}}
         \DeclareUnicodeCharacter{03C6}{\ensuremath{\varphi}}
         \DeclareUnicodeCharacter{1D34}{\ensuremath{^{\mathrm{H}}}}
@@ -214,7 +214,7 @@
         \DeclareUnicodeCharacter{2209}{\ensuremath{\notin}}
         \DeclareUnicodeCharacter{220C}{\ensuremath{\not\ni}}
         \DeclareUnicodeCharacter{2211}{\ensuremath{\sum}}
-+       \DeclareUnicodeCharacter{2213}{\ensuremath{\mp}}
+        \DeclareUnicodeCharacter{2213}{\ensuremath{\mp}}
         \DeclareUnicodeCharacter{221A}{\ensuremath{\sqrt{}}}
         \DeclareUnicodeCharacter{221B}{\ensuremath{\sqrt[3]{}}}
         \DeclareUnicodeCharacter{222A}{\ensuremath{\cup}}