remove deprecated connection options

[strantalis]

During the deployment modes story we centralized around one custom grpc connection option.

platform/sdk/options.go

Lines 205 to 209 in 32c09c3

	func WithCustomCoreConnection(conn *grpc.ClientConn) Option {
	return func(c *config) {
	c.coreConn = conn
	}
	}

This issue is to track removal of the following deprecated options.

platform/sdk/options.go

Lines 116 to 135 in 32c09c3

	// Deprecated: Use WithCustomCoreConnection instead
	func WithCustomPolicyConnection(conn *grpc.ClientConn) Option {
	return func(c *config) {
	c.coreConn = conn
	}
	}
	// Deprecated: Use WithCustomCoreConnection instead
	func WithCustomAuthorizationConnection(conn *grpc.ClientConn) Option {
	return func(c *config) {
	c.coreConn = conn
	}
	}
	// Deprecated: Use WithCustomCoreConnection instead
	func WithCustomEntityResolutionConnection(conn *grpc.ClientConn) Option {
	return func(c *config) {
	c.coreConn = conn
	}
	}

platform/sdk/options.go

Lines 174 to 178 in 32c09c3

	func WithCustomWellknownConnection(conn *grpc.ClientConn) Option {
	return func(c *config) {
	c.coreConn = conn
	}
	}

Acceptance Criteria:

• Update tests where needed

[cassandrabailey293]

we will probably need a custom connection for ERS once its split out. moving this ticket to next sprint once that is completed, we can work this one