Removing impossible scenario, since strings are always non-empty

Author: afilina

src/Generator/JekyllPageGenerator.php

@@ -49,13 +49,6 @@ public function createViolationDoc(Violation $violation): string
     private function getFrontMatter(Sniff $sniff): string
     {
         $sniffName = $sniff->getSniffName();
-        if ($sniffName === '') {
-            return <<<'MD'
-            ---
-            ---
-
-            MD;
-        }
 
         return <<<MD
         ---

src/Value/Sniff.php

@@ -71,21 +71,25 @@ public function __construct(
         $this->violations = $violations;
     }
 
+    /** @return non-empty-string */
     public function getCode(): string
     {
         return $this->code;
     }
 
+    /** @return non-empty-string */
     public function getStandardName(): string
     {
         return $this->standardName;
     }
 
+    /** @return non-empty-string */
     public function getCategoryName(): string
     {
         return $this->categoryName;
     }
 
+    /** @return non-empty-string */
     public function getSniffName(): string
     {
         return $this->sniffName;