Cleanup

Remove changes unrelated to issue
diff --git a/src/commands/math/advancedSymbols.js b/src/commands/math/advancedSymbols.js
index b0f1e3b..11f71e5 100644
--- a/src/commands/math/advancedSymbols.js
+++ b/src/commands/math/advancedSymbols.js
@@ -220,11 +220,10 @@
 LatexCmds.closecurlybrace = LatexCmds.rbrace = bind(VanillaSymbol, '\\rbrace ', '}');
 LatexCmds.lbrack = bind(VanillaSymbol, '[');
 LatexCmds.rbrack = bind(VanillaSymbol, ']');
- 
+
 //various symbols
 LatexCmds.slash = bind(VanillaSymbol, '/');
 LatexCmds.vert = bind(VanillaSymbol,'|');
-LatexCmds['|'] = bind(VanillaSymbol,'\\| ','∥');
 LatexCmds.perp = LatexCmds.perpendicular = bind(VanillaSymbol,'\\perp ','⊥');
 LatexCmds.nabla = LatexCmds.del = bind(VanillaSymbol,'\\nabla ','∇');
 LatexCmds.hbar = bind(VanillaSymbol,'\\hbar ','ℏ');
@@ -322,12 +321,5 @@
 
 // FIXME: the correct LaTeX would be ^\circ but we can't parse that
 LatexCmds.deg = LatexCmds.degree = bind(VanillaSymbol,'\\degree ','°');
-
-LatexCmds.celsius = bind(VanillaSymbol,'\\celsius ','℃');
-LatexCmds.micro = bind(VanillaSymbol,'\\micro ','µ');
-LatexCmds.perthousand = bind(VanillaSymbol,'\\perthousand ','‰');
-LatexCmds.ohm = bind(VanillaSymbol,'\\ohm ','Ω');
-
-
 LatexCmds.ang = LatexCmds.angle = bind(VanillaSymbol,'\\angle ','∠');
 LatexCmds.measuredangle = bind(VanillaSymbol,'\\measuredangle ','∡');
diff --git a/src/commands/math/basicSymbols.js b/src/commands/math/basicSymbols.js
index 2b9cb09..604fa3d 100644
--- a/src/commands/math/basicSymbols.js
+++ b/src/commands/math/basicSymbols.js
@@ -239,9 +239,6 @@
 LatexCmds[' '] = LatexCmds.space = bind(VanillaSymbol, '\\ ', ' ');
 
 LatexCmds["'"] = LatexCmds.prime = bind(VanillaSymbol, "'", '′');
-LatexCmds["''"] = LatexCmds.second = bind(VanillaSymbol,'\\second ','″');
-LatexCmds["''"] = LatexCmds.third = bind(VanillaSymbol,'\\third ','‴');
-LatexCmds.backprime = bind(VanillaSymbol, "\\backprime ", '‵');
 
 LatexCmds.backslash = bind(VanillaSymbol,'\\backslash ','\\');
 if (!CharCmds['\\']) CharCmds['\\'] = LatexCmds.backslash;
diff --git a/src/services/latex.js b/src/services/latex.js
index 49ebfc9..75369e8 100644
--- a/src/services/latex.js
+++ b/src/services/latex.js
@@ -29,9 +29,9 @@
   var symbol = regex(/^[^${}\\_^]/).map(function(c) { return VanillaSymbol(c); });
 
   var controlSequence =
-    regex(/^[^\\a-eg-zA-Z|]/) // hotfix #164; match MathBlock::write
+    regex(/^[^\\a-eg-zA-Z]/) // hotfix #164; match MathBlock::write
     .or(string('\\').then(
-      regex(/^[a-z|]+/i)
+      regex(/^[a-z]+/i)
       .or(regex(/^\s+/).result(' '))
       .or(any)
     )).then(function(ctrlSeq) {