remove (hopefully) unnecessary regex pattern

Author: TC-MO

.vale.ini

@@ -12,7 +12,7 @@ mdx = md
 [*.md]
 BasedOnStyles = Vale, Apify, write-good, Microsoft
 # Ignore URLs, HTML/XML tags, lines with =, emails, curly braces, inline code
-TokenIgnores = (<\/?[A-Z][^>]*>), ([^\n]+=[^\n]*), ([^\n]+@[^\n]+\.[^\n]), ({[^}]*})
+TokenIgnores = (<\/?[A-Z][^>]*>), ([^\n]+@[^\n]+\.[^\n]), ({[^}]*})
 # Ignore HTML comments and Markdown code blocks
 BlockIgnores = (?s) (<!--.*?-->)|(```.*?```)