[NFC][analyzer] Remove empty alpha.security.cert checker category (#163606)

Author: gamesh411

clang/docs/analyzer/checkers.rst

@@ -3465,12 +3465,6 @@ Check for an out-of-bound pointer being returned to callers.
    return x; // warn: undefined or garbage returned
  }
 
-
-alpha.security.cert
-^^^^^^^^^^^^^^^^^^^
-
-SEI CERT checkers which tries to find errors based on their `C coding rules <https://wiki.sei.cmu.edu/confluence/display/c/2+Rules>`_.
-
 alpha.unix
 ^^^^^^^^^^
 

clang/include/clang/StaticAnalyzer/Checkers/Checkers.td

@@ -76,9 +76,6 @@ def SecurityAlpha : Package<"security">, ParentPackage<Alpha>;
 def CERT : Package<"cert">, ParentPackage<Security>;
 def ENV : Package<"env">, ParentPackage<CERT>;
 
-def CERTAlpha : Package<"cert">, ParentPackage<SecurityAlpha>;
-def POSAlpha : Package<"pos">, ParentPackage<CERTAlpha>;
-
 def Unix : Package<"unix">;
 def UnixAlpha : Package<"unix">, ParentPackage<Alpha>;
 def CString : Package<"cstring">, ParentPackage<Unix>;