[INTERNAL] sap.m.Page: Redundant unit tests removed
[INTERNAL] sap.m.Page: Redundant unit tests removed

- Assertions that were removed were  testing if a background color is
transparent which should not be part of an unit test. Some browsers
identify background-color transparency as rba(0, 0, 0, 0) instead of
transparent.

Change-Id: Ie2e2fc64e97ca29e829b909f416d4a0ad477726b
BCP: 1780325758

nzamani/openui5,nzamani/openui5,nzamani/openui5,SAP/openui5,cschuff/openui5,SAP/openui5,SQCLabs/openui5,SQCLabs/openui5,SAP/openui5,SAP/openui5,cschuff/openui5,cschuff/openui5,SQCLabs/openui5