Remove new test files

test_regress/t/t_case_incomplete_enum_warn.out

@@ -1,3 +0,0 @@
-%Warning-CASEINCOMPLETE: t/t_case_incomplete_enum_warn.v:17:16: Enum item 'STATE_WRITE' not covered by case
-%Warning-CASEINCOMPLETE: t/t_case_incomplete_enum_warn.v:17:16: Enum item 'STATE_ERROR' not covered by case
-%Error: Exiting due to 2 warning(s)

test_regress/t/t_case_incomplete_enum_warn.py

@@ -1,5 +0,0 @@
-#!/usr/bin/env python3
-import vltest_bootstrap
-test.scenarios('linter')
-test.lint(fails=True, expect_filename=test.golden_filename)
-test.passes()

test_regress/t/t_case_incomplete_enum_warn.v

@@ -1,22 +0,0 @@
-module test_bug;
-    // Define an enum with 4 states
-    typedef enum logic [1:0] {
-        STATE_IDLE  = 2'd0,
-        STATE_READ  = 2'd1,
-        STATE_WRITE = 2'd2,
-        STATE_ERROR = 2'd3
-    } system_state_t;
-
-    system_state_t current_state;
-
-    initial begin
-        current_state = STATE_IDLE;
-        
-        // We only cover IDLE and READ.
-        // We intentionally leave out WRITE and ERROR!
-        unique case (current_state)
-            STATE_IDLE: $display("Idling...");
-            STATE_READ: $display("Reading...");
-        endcase
-    end
-endmodule