diff --git a/system/HTTP/Files/FileCollection.php b/system/HTTP/Files/FileCollection.php
index 120652e8bd87..484b3ff74872 100644
--- a/system/HTTP/Files/FileCollection.php
+++ b/system/HTTP/Files/FileCollection.php
@@ -253,7 +253,7 @@ protected function getValueDotNotationSyntax(array $index, array $value)
     {
         $currentIndex = array_shift($index);
 
-        if (isset($currentIndex) && is_array($index) && $index !== [] && array_key_exists($currentIndex, $value) && is_array($value[$currentIndex])) {
+        if (isset($currentIndex) && $index !== [] && array_key_exists($currentIndex, $value) && is_array($value[$currentIndex])) {
             return $this->getValueDotNotationSyntax($index, $value[$currentIndex]);
         }
 
diff --git a/system/Test/DOMParser.php b/system/Test/DOMParser.php
index f46ce1d65206..d8521edfbc86 100644
--- a/system/Test/DOMParser.php
+++ b/system/Test/DOMParser.php
@@ -233,10 +233,8 @@ protected function doXPath(?string $search, string $element, array $paths = [])
 
         // $paths might contain a number of different
         // ready to go xpath portions to tack on.
-        if ($paths !== [] && is_array($paths)) {
-            foreach ($paths as $extra) {
-                $path .= $extra;
-            }
+        foreach ($paths as $extra) {
+            $path .= $extra;
         }
 
         if ($search !== null) {
diff --git a/utils/phpstan-baseline/function.alreadyNarrowedType.neon b/utils/phpstan-baseline/function.alreadyNarrowedType.neon
deleted file mode 100644
index 740fa9659412..000000000000
--- a/utils/phpstan-baseline/function.alreadyNarrowedType.neon
+++ /dev/null
@@ -1,13 +0,0 @@
-# total 2 errors
-
-parameters:
-    ignoreErrors:
-        -
-            message: '#^Call to function is_array\(\) with array will always evaluate to true\.$#'
-            count: 1
-            path: ../../system/HTTP/Files/FileCollection.php
-
-        -
-            message: '#^Call to function is_array\(\) with non\-empty\-array will always evaluate to true\.$#'
-            count: 1
-            path: ../../system/Test/DOMParser.php
diff --git a/utils/phpstan-baseline/loader.neon b/utils/phpstan-baseline/loader.neon
index 7cd42b1fec33..575c7843ba98 100644
--- a/utils/phpstan-baseline/loader.neon
+++ b/utils/phpstan-baseline/loader.neon
@@ -1,4 +1,4 @@
-# total 3589 errors
+# total 3587 errors
 includes:
     - argument.type.neon
     - assign.propertyType.neon
@@ -11,7 +11,6 @@ includes:
     - deadCode.unreachable.neon
     - empty.notAllowed.neon
     - empty.property.neon
-    - function.alreadyNarrowedType.neon
     - generator.valueType.neon
     - isset.property.neon
     - method.alreadyNarrowedType.neon