panfrost: Remove perfetto-specific .clang-format

We'll use the one in src/panfrost/.clang-format instead, which isn't identical
but should be good enough. This way they don't conflict with each other.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20425>

src/panfrost/ds/.clang-format

@@ -1,21 +0,0 @@
-BasedOnStyle: WebKit
-AlignTrailingComments: 'true'
-AllowAllParametersOfDeclarationOnNextLine: 'false'
-AllowShortFunctionsOnASingleLine: None
-AlwaysBreakBeforeMultilineStrings: 'true'
-BinPackArguments: 'false'
-BinPackParameters: 'false'
-BreakBeforeBinaryOperators: None
-BreakBeforeBraces: Linux
-ColumnLimit: '100'
-Cpp11BracedListStyle: 'true'
-KeepEmptyLinesAtTheStartOfBlocks: 'false'
-NamespaceIndentation: None
-PointerAlignment: Right
-SortIncludes: 'true'
-SpaceAfterTemplateKeyword: 'false'
-Standard: Cpp11
-TabWidth: '3'
-IndentWidth: '3'
-ConstructorInitializerIndentWidth: '3'
-ContinuationIndentWidth: '3'