fix(RemoveParentCallWithoutParentRector): skip cases when class reflection is not found #32815

Job	Run time
End to end test - e2e/applied-polyfill-php80	21s
End to end test - e2e/applied-auto-import	16s
End to end test - e2e/different-path-over-skip-config	17s
End to end test - e2e/applied-rule-change-docblock	20s
End to end test - e2e/applied-rule-return-array-nodes	21s
End to end test - e2e/applied-rule-removed-node	16s
End to end test - e2e/only-option-quote-double-equalnone	21s
End to end test - e2e/no-parallel-reflection-resolver	22s
End to end test - e2e/only-option-quote-single	23s
End to end test - e2e/parallel-reflection-resolver	21s
End to end test - e2e/only-option-quote-single-bsdouble	19s
End to end test - e2e/parallel with space	15s
End to end test - e2e/only-option-quote-single-equalnone	23s
End to end test - e2e/parallel-custom-config	16s
End to end test - e2e/only-option	22s
End to end test - e2e/invalid-paths	18s
End to end test - e2e/print-new-node	16s
	5m 27s

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