Remove duplicate MaxAlignT code

Author: Nikita Kraiouchkine

c/cert/src/rules/MEM36-C/DoNotModifyAlignmentOfMemoryWithRealloc.ql

@@ -14,7 +14,7 @@
 
 import cpp
 import codingstandards.c.cert
-import codingstandards.cpp.Allocations
+import codingstandards.cpp.Alignment
 import semmle.code.cpp.dataflow.DataFlow
 import DataFlow::PathGraph
 

cpp/common/src/codingstandards/cpp/Allocations.qll

@@ -168,21 +168,3 @@ predicate freeExprOrIndirect(Expr free, Expr freed, string kind) {
     free.(FunctionCall).getArgument(arg) = freed
   )
 }
-
-class MaxAlignT extends TypedefType {
-  MaxAlignT() { getName() = "max_align_t" }
-}
-
-/**
- * Gets the alignment for `max_align_t`, assuming there is a single consistent alignment for the
- * database.
- *
- * In theory, each compilation of each file can have a different `max_align_t` value (for example,
- * if the same file is compiled under different compilers in the same database). We don't have the
- * fine-grained data to determine which compilation each operator new call is from, so only hold in
- * cases where there's a single clear alignment for the whole database.
- */
-int getGlobalMaxAlignT() {
-  count(MaxAlignT m | | m.getAlignment()) = 1 and
-  result = any(MaxAlignT t).getAlignment()
-}