cleanup: k3-j721e-beagleboneai64: remove extra clk_ov5640_fixed: node

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>

src/arm64/k3-j721e-beagleboneai64-no-shared-mem.dts

@@ -206,12 +206,6 @@
 			};
 		};
 	};
-
-	clk_ov5640_fixed: ov5640-xclk {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-frequency = <25000000>;
-	};
 };
 
 &main_pmx0 {

src/arm64/k3-j721e-beagleboneai64.dts

@@ -206,12 +206,6 @@
 			};
 		};
 	};
-
-	clk_ov5640_fixed: ov5640-xclk {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-frequency = <25000000>;
-	};
 };
 
 &main_pmx0 {